Wikipedia:WikiProject Core Content/Undersourced
Appearance
The following is a list of articles that are in Wikipedia:WikiProject Core Content/Articles and Category:All articles needing additional references. PSID 22732206. Last updated 19:39, 28 August 2022 (UTC)
List
[edit]- (Sittin' On) The Dock of the Bay
- 0
- 1902 eruption of Mount Pelée
- 1905 Russian Revolution
- 1932 New South Wales constitutional crisis
- 1944 Romanian coup d'état
- 1948 Arab–Israeli War
- 1954 Geneva Conference
- 1968 Olympics Black Power salute
- 1973 Chilean coup d'état
- 1973 oil crisis
- 1989 Tiananmen Square protests and massacre
- 1991 Soviet coup d'état attempt
- 1993 Russian constitutional crisis
- 2000s in science and technology
- 2002–2004 SARS outbreak
- 2005–2006 Fijian political crisis
- 2008 Sichuan earthquake
- 2011 Egyptian revolution
- 20th-century classical music
- 24 Parganas
- 3
- 32-bit computing
- 3dfx Interactive
- 5.56×45mm NATO
- 60 Minutes
- 64-bit computing
- 7 July 2005 London bombings
- 8
- 8-bit computing
- 9
- A Brief History of Time
- A Clockwork Orange (film)
- A Dance of the Forests
- A Dictionary of the English Language
- A Doll's House
- A Harlot's Progress
- A Midsummer Night's Dream
- A Tree Grows in Brooklyn (novel)
- A cappella
- A value
- AC adapter
- AC power plugs and sockets
- AGP Inline Memory Module
- AIESEC
- AK-47
- ALBA
- ALF (TV series)
- ANZUS
- ARM architecture family
- ASC X12
- ASDE-X
- Aardvark
- Aba, Nigeria
- Abatis
- Abbas I of Egypt
- Abbasid Caliphate
- Abbey of Saint Wandrille
- Abbots Bromley Horn Dance
- Abbreviation
- Abd Allah ibn Sa'd
- Abd al-Rahman III
- Abd ar-Rahman II
- Abdel Hakim Amer
- Abdul Hamid II
- Abeokuta
- Aberdeen
- Aberdeen, South Dakota
- Aberration (astronomy)
- Abkhaz language
- Ableman v. Booth
- Abolitionism
- Abor Hills
- Abortion law
- Abraham
- Abraham Calovius
- Abram Hewitt
- Abrasion (geology)
- Abraxas
- Abruzzo
- Absolute dating
- Absolute monarchy
- Absorption band
- Abstemius
- Abstract data type
- Abu Ubayda ibn al-Jarrah
- Abuja
- Academic conference
- Academic degree
- Academic freedom
- Academic journal
- Academy Awards
- Acanthocephala
- Acanthostega
- Acanthuridae
- Acapulco
- Access token
- Accessory (legal term)
- Accomplice
- Accordion
- Accountant
- Accoutrements
- Accretionary wedge
- Acetylcholine
- Achill Island
- Acid–base reaction
- Acoustic radiometer
- Acousto-optic modulator
- Acrobatics
- Acronym
- Action (firearms)
- Action fiction
- Action film
- Acts of Union 1800
- Ad-Dahna Desert
- Adal Sultanate
- Adam Johann von Krusenstern
- Adam Kadmon
- Adam Oehlenschläger
- Adamantios Korais
- Adamawa State
- Adams–Onís Treaty
- Addis Ababa
- Adelaide Kemble
- Adelaide Neilson
- Adelbert von Chamisso
- Adelina Patti
- Ademption
- Aden
- Adiaphora
- Adil Shahi dynasty
- Adivasi
- Adjara
- Administrative court
- Administrative division
- Administrative divisions of Mexico
- Administrative law
- Admiralty law
- Adolescence
- Adolf Erman
- Adolf Frederick of Sweden
- Adolf Glassbrenner
- Adolf Jellinek
- Adolf Oberländer
- Adolphe Granier de Cassagnac
- Adolphe Niel
- Adriano Castellesi
- Adrien Albert Marie de Mun
- Advanced Audio Coding
- Advanced RISC Computing
- Adventure film
- Adverse effect
- Advocatus
- Advowson
- Aecium
- Aegadian Islands
- Aeon
- Aerial advertising
- Aerial refueling
- Aerial tramway
- Aerodynamics
- Aerostat
- Aether theories
- Aethusa cynapium
- Affinity (law)
- Affymetrix
- Afghan Civil War (1996–2001)
- Afonso III of Portugal
- Afonso IV of Portugal
- Afonso VI of Portugal
- Afonso de Albuquerque
- African art
- African buffalo
- African-American dance
- African-American history
- Africanized bee
- Afrikaans
- Afroasiatic languages
- Afterlife
- Aftermath of World War I
- Agaléga
- Agartala
- Agathis
- Agathosma
- Age of Discovery
- Age of Sail
- Agglomerate
- Aggtelek
- Agostino Bertani
- Agoua
- Agra
- Agricultural cooperative
- Agricultural science
- Aguascalientes
- Aharonov–Bohm effect
- Ahkam
- Ahmednagar
- Ai-Kon
- Aide-de-camp
- Aiguillette
- Air China
- Air France
- Air filter
- Air force
- Air purifier
- Air superiority fighter
- Air traffic control
- Airborne collision avoidance system
- Aircraft flight control system
- Aircraft pilot
- Airfoil
- Airline
- Airship
- Ajmer
- Akbar
- Akhaltsikhe
- Akhisar
- Akita Prefecture
- Akkadian language
- Akkalkot
- Akola
- Aksak
- Aktobe
- Akure
- Al-A'sha
- Al-Bahah Province
- Al-Faw peninsula
- Al-Jawf Province
- Al-Qaeda
- Al-Waqidi
- Alabaster
- Aladura
- Alagoinhas
- Alameda (island)
- Alans
- Alarm signal
- Alaska
- Alaska pollock
- Alassio
- Alatri
- Alaungpaya
- Alba Iulia
- Albania
- Albarello
- Albemarle Sound
- Albendazole
- Albert Alcibiades, Margrave of Brandenburg-Kulmbach
- Albert Canal
- Albert Fitch Bellows
- Albert Frey-Wyssling
- Albert I of Germany
- Albert II, Margrave of Meissen
- Albert Perry Brigham
- Albert of Brandenburg
- Albert, Duke of Prussia
- Albert-Ernest Carrier-Belleuse
- Alberto Blest Gana
- Alberto Cavalcanti
- Alborz
- Albrecht III Achilles, Elector of Brandenburg
- Albrecht von Wallenstein
- Album
- Alcalá la Real
- Alcatraz Island
- Alcohol law
- Aldan (river)
- Aleardo Aleardi
- Alentejo
- Aleph number
- Alevism
- Alexander Cruden
- Alexander Glazunov
- Alexander II of Russia
- Alexander III of Russia
- Alexander Webster
- Alexander Ypsilantis
- Alexander von Humboldt
- Alexandre Brongniart
- Alexandre de Serpa Pinto
- Alexandria, Romania
- Alexandrian school
- Alexandru Ioan Cuza
- Alexis Soyer
- Alfonso II of Asturias
- Alfonso III of Asturias
- Alfred Herrhausen
- Alfred Lewis Jones
- Alfred Philippe Roll
- Alfredo Baldomir
- Algaculture
- Algebraic equation
- Algebraic geometry
- Algerian War
- Algiers
- Algorithm
- Alhama de Granada
- Alhambra
- Alhucemas Islands
- Alice Hegan Rice
- Alicia Alonso
- Alkali
- Alkali salt
- Alkane
- All Nippon Airways
- All in the Family
- All-Russia State Television and Radio Broadcasting Company
- All-pass filter
- Allammelech
- Alliance
- Allocution
- Allodial title
- Allonge
- Allotropes of sulfur
- Ally McBeal
- Almaty
- Almohad Caliphate
- Almon Diblathaim
- Almoravid dynasty
- Alonso de Guzmán y Sotomayor, 7th Duke of Medina Sidonia
- Alpes-Maritimes
- Alpha Centauri
- Alpha particle
- Alpini
- Alpujarras
- Alsace
- Alsace–Lorraine
- Altar
- Altdorf, Uri
- Alternative education
- Alternative fuel vehicle
- Altitude
- Altmühl
- Altostratus undulatus cloud
- Altötting
- Alur people
- Amadeo I of Spain
- Amalgam (chemistry)
- Amami Islands
- Amand Bazard
- Amapala
- Amarah
- Amaranth
- Amarasimha
- Amaravati
- Amateur astronomy
- Amazons
- Amber (color)
- Amber Road
- Ambon, Maluku
- American Association for the Advancement of Science
- American Cordillera
- American Dad!
- American Horror Story
- American Idol
- American Museum of Natural History
- American Public Media
- American literature
- Americas
- Amharic
- Amiens
- Ammonium
- Ammunition
- Ammunition box
- Amnesia
- Amniote
- Amphibolite
- Amplitude modulation
- Amputation
- Amr ibn al-As Mosque
- Amroha
- Amsterdam
- Amu Darya
- Amyl alcohol
- Anabaptism
- Anabasis (Xenophon)
- Anadyr (river)
- Anal hygiene
- Analog computer
- Analog synthesizer
- Analog-to-digital converter
- Anan ben David
- Anarkali
- Anatolia
- Anchor
- Ancien Régime
- Ancient Celtic religion
- Ancient Corinth
- Ancient Egyptian architecture
- Ancient Greek
- Ancient Roman architecture
- Ancient Semitic religion
- Ancient literature
- Ancient music
- Ancient philosophy
- Ancient technology
- Anders Torstenson
- Andes
- Andorra
- Andrea Cesalpino
- Andrea Riccio
- Andreas Peter Bernstorff
- Andrew Michael Ramsay
- Andrew Preston Peabody
- Andrey Osterman
- Androphagi
- András Fáy
- André Marie Jean Jacques Dupin
- André de Resende
- Andújar
- Anechoic chamber
- Anesthesia
- Anesthesiology
- Angel
- Angela Burdett-Coutts, 1st Baroness Burdett-Coutts
- Angeles City
- Angelo Mai
- Angelus
- Anger
- Angle
- Anglesey
- Anglo-Persian Oil Company
- Angola
- Angolan Civil War
- Angst
- Angular diameter
- Angular resolution
- Animal communication
- Animal sanctuary
- Animal training
- Ankara
- Anna Leopoldovna
- Anna Louisa Geertruida Bosboom-Toussaint
- Anna of Russia
- Anne Geneviève de Bourbon
- Anne Oldfield
- Annexation of Goa
- Anniston, Alabama
- Annonay
- Annuity (European)
- Annunciation
- Anoa
- Anouvong
- Ansan
- Anselm de Guibours
- Ansonia, Connecticut
- Antagonist
- Anteater
- Antelope
- Antenna (radio)
- Antennae Galaxies
- Anthocyanin
- Anthony Munday
- Anthony of Padua
- Anthoxanthin
- Anthracite
- Anthropocentrism
- Anthurium
- Anti-Federalism
- Anti-aircraft warfare
- Antiferromagnetism
- Antigone
- Antigua
- Antigua and Barbuda
- Antioch of Pisidia
- Antioquia Department
- Antiparos
- Antipolo
- Antique
- Antiques Roadshow
- Antisemitism
- Antisymmetric relation
- Antofagasta
- Antoine Arnauld
- Antoine Augustin Calmet
- Antoine Bruni d'Entrecasteaux
- Antoine Chanzy
- Antoine Charles Louis de Lasalle
- Antoine Jérôme Balard
- Antoine Lavoisier
- Antoine Nompar de Caumont
- Antoine Perrenot de Granvelle
- Antoine de Montchrestien
- Antoine-François-Claude Ferrand
- Antoine-Marin Lemierre
- Anton Heinrich Springer
- Anton Reicha
- Anton Reinhard Falck
- Antonio Cesti
- Antonio Cánovas del Castillo
- Antonio Genovesi
- Antonio da Sangallo the Younger
- Antonio de Solís y Ribadeneyra
- Antonius Felix
- Antonomasia
- Antrim, County Antrim
- Antwerp
- António, Prior of Crato
- Anvil
- Apache
- Aparicio Méndez
- Aparri
- Apartheid
- Apartment
- Ape
- Apeldoorn
- Aperture (antenna)
- Aperture card
- Aperture synthesis
- Aphasia
- Aphorism
- Apia
- Apiaceae
- Apollinaris of Laodicea
- Apollodorus of Damascus
- Apostasy
- Apostolic Fathers
- Apparent magnitude
- Appenzell
- Applause
- Apple II
- Apple menu
- Application checkpointing
- Applied science
- Apponaug, Rhode Island
- Approximation
- April Uprising of 1876
- Apsara
- Apsis
- Apure
- Aqa Mirak
- Aqueduct (water supply)
- Aqueous solution
- Aquila (constellation)
- Aquitaine
- Ar (city)
- Arab League
- Arab Mashreq International Road Network
- Arabesque
- Arable land
- Arachne
- Aragonese language
- Aral Karakum Desert
- Aramaic
- Aran Islands
- Arauca River
- Araucanía Region
- Arawa, Bougainville
- Arbitrage
- Arboretum
- Arboriculture
- Arc de Triomphe
- Archaeological culture
- Archaeological excavation
- Archduke Charles, Duke of Teschen
- Archibald Campbell, 1st Marquess of Argyll
- Archibald Douglas, 8th Earl of Angus
- Archibald Primrose, 5th Earl of Rosebery
- Archimedes' screw
- Architectural drawing
- Architecture of Canada
- Architecture of cathedrals and great churches
- Architecture of the Netherlands
- Archive bit
- Archpriest
- Arcole
- Arctic
- Area (architecture)
- Arecaceae
- Arecibo Observatory
- Arecidae
- Areopagitica
- Arequipa
- Ares
- Arevaci
- Argentina
- Arhynchobdellida
- Arica
- Aristide Briand
- Arizona
- Arkansas
- Arkhangelsk
- Armand Gensonné
- Armand Jean le Bouthillier de Rancé
- Armand de Bourbon, Prince of Conti
- Armenian Apostolic Church
- Armour-piercing ammunition
- Armoured personnel carrier
- Arms control
- Arms race
- Arnaud du Ferrier
- Arno Holz
- Around the World in Eighty Days
- Arquebus
- Array data structure
- Arrest
- Arrondissement
- Arrow pushing
- Arsène Lupin
- Art Deco
- Art and culture law
- Art history
- Artamon Matveyev
- Arte Povera
- Artemidorus
- Artemis
- Artemisa
- Artemisia abrotanum
- Arthur Erdélyi
- Arthur Giry
- Arthur III, Duke of Brittany
- Arthur Nikisch
- Article (grammar)
- Articles of Confederation
- Artificial neural network
- Artificial organ
- Artillery
- Artist's book
- Arts journalism
- Arunachal Pradesh
- Arusha
- Arval Brethren
- Arzamas Society
- As I Lay Dying
- As the World Turns
- Asaf-ud-Daula
- Asahikawa
- Asbestos
- Asceticism
- Ascus
- Asenovgrad
- Asexual reproduction
- Ash
- Asher ben Jehiel
- Ashokan Reservoir
- Ashta Pradhan
- Asháninka
- Askeri
- Asmus Jacob Carstens
- Aspartic acid
- Asphalt concrete
- Assault (tort)
- Assay
- Assegai
- Assignment (law)
- Assimilation (phonology)
- Associated Universities, Inc.
- Association des États Généraux des Étudiants de l'Europe
- Association for Computing Machinery
- Association of Software Professionals
- Associative property
- Assyriology
- Asteraceae
- Astrakhan
- Astro Boy (character)
- Astrological aspect
- Astronomical transit
- Astrophotography
- Astrophysical maser
- Asturias
- Astypalaia
- Asunción
- Aswan
- Aswan Dam
- Asymmetric warfare
- Atacama Region
- Athalaric
- Athens Metro
- Atlantic hurricane season
- Atlantic slave trade
- Atmosphere of Earth
- Atolls of the Maldives
- Atomic spectroscopy
- Atropine
- Attack aircraft
- Attempt
- Attornment
- Attu Island
- Audience
- Audio Interchange File Format
- Audio and video interfaces and connectors
- Audiovisual
- Audition
- Auditorium
- Augsburg
- August Friedrich Pott
- August Heinrich Petermann
- August Kekulé
- August Ludwig von Schlözer
- August von Kotzebue
- Auguste Mariette
- Auguste Vestris
- Augustus Charles Pugin
- Aulus Caecina
- Aunt Sally
- Australian Labor Party
- Australian dollar
- Austria-Hungary
- Austrian Littoral
- Austrian literature
- Austro-Prussian War
- Author
- Authoritarian personality
- Autocannon
- Automated teller machine
- Automation
- Automobile repair shop
- Automotive design
- Automotive engineering
- Autonomous University of Barcelona
- Autopilot
- Auvergne
- Avadi
- Availability factor
- Avalanche
- Avar language
- Avatar (computing)
- Aviation
- Aviation law
- Axe
- Axiom of infinity
- Axle
- Aymara language
- Ayutthaya Kingdom
- Azamgarh
- Azerbaijani language
- Aztec religion
- Aëtius of Antioch
- Aïn Séfra
- B Young
- B vitamins
- B-tree
- BASF
- BIFF
- BIOS
- BL Lacertae object
- BMW
- BMX bike
- Ba'alat, Lady of Byblos
- Baalis
- Babenberg
- Babruysk
- Babylonian law
- Bach family
- Bachelor of Science
- Bachelor's degree
- Back Orifice
- Backfeeding
- Background music
- Bacolod
- Bacon's Rebellion
- Bacterial cell structure
- Bad Gastein
- Bad Ischl
- Bad Kreuznach
- Bad Münster am Stein-Ebernburg
- Badagry
- Badakhshan
- Badawiyya
- Baden-Württemberg
- Badin
- Badlands National Park
- Badshahi Mosque
- Bafia
- Baghdad
- Bagni di Lucca
- Bagpipes
- Bagutta Prize
- Baha' al-din al-'Amili
- Bahraich
- Baiji
- Baixada Fluminense
- Baja California
- Baja California peninsula
- Bak file
- Bakhchysarai
- Bakumatsu
- Baladi
- Balasore
- Balayan
- Balcony
- Baler
- Baliuag
- Balkan music
- Balkans
- Balkans campaign (World War II)
- Balkans theatre
- Ball-and-stick model
- Ballistics
- Balloon (aeronautics)
- Balochistan, Pakistan
- Baltic mythology
- Bamana Empire
- Bambara language
- Bamboo
- Bamboo shoot
- Band-pass filter
- Bandung
- Bangkok
- Bangladesh
- Banjo
- Banjul
- Bank
- Bank of China
- Bank rate
- Bank robbery
- Bank vault
- Bankim Chandra Chatterjee
- Bankruptcy
- Banner
- Bannu
- Banswara
- Bantu languages
- Bantustan
- Baoji
- Baptism
- Bar, Montenegro
- Bar-le-Duc
- Baranya County
- Barbados
- Barbara von Krüdener
- Barbershop music
- Barcelona Metro
- Bardhaman
- Barge
- Barghest
- Bari
- Barisal
- Barisal Division
- Bark (botany)
- Barley
- Barmakids
- Barnabe Googe
- Barney & Friends
- Baroda State
- Baron Franz von der Trenck
- Baron Methuen
- Baron North
- Baron Samedi
- Baroque architecture
- Baroque music
- Baroque sculpture
- Barotac Nuevo
- Barquisimeto
- Barra Mansa
- Barrackpore
- Barrel piano
- Barren Grounds
- Barrier island
- Barrister
- Bartender
- Bartolomeo Ammannati
- Bartolomeo Borghesi
- Bartolomeo Colleoni
- Barton Booth
- Bartın Province
- Barugo
- Baryon number
- Basal sliding
- Base (chemistry)
- Base anhydride
- Basement (geology)
- Bashir Tofa
- Bashkirs
- Bashkortostan
- Basil
- Basil Faber
- Basilan
- Basiliscus (lizard)
- Basket weaving
- Basque Country (autonomous community)
- Basque language
- Basques
- Bass (voice type)
- Basseterre
- Bassoon
- Batac
- Batala
- Batanes
- Batman (TV series)
- Baton (law enforcement)
- Battel
- Battering ram
- Battery (tort)
- Battle
- Battle of Ankara
- Battle of Breitenfeld (1631)
- Battle of Cannae
- Battle of Caporetto
- Battle of Ctesiphon (363)
- Battle of Eutaw Springs
- Battle of France
- Battle of Gaugamela
- Battle of Gettysburg
- Battle of Guilford Court House
- Battle of Hong Kong
- Battle of Iwo Jima
- Battle of Kabul (1992–1996)
- Battle of Leuctra
- Battle of Leyte Gulf
- Battle of Meloria (1284)
- Battle of Mobile Bay
- Battle of Navarino
- Battle of Rorke's Drift
- Battle of Sekigahara
- Battle of St Fagans
- Battle of Stalingrad
- Battle of Tours
- Battle of Trafalgar
- Battle of Vittorio Veneto
- Battle of Warsaw (1920)
- Battle of White Mountain
- Battle of Wörth
- Battle of the Atlantic
- Battle of the Bulge
- Battle of the Caudine Forks
- Battle of the Herrings
- Battle of the Little Bighorn
- Battle of the Teutoburg Forest
- Battle on the Ice
- Battles of the Isonzo
- Battleship
- Battleship Potemkin
- Bauffremont
- Bay of Bengal
- Bay of Biscay
- Baybay
- Başkale
- Bean
- Bean bag round
- Bearing (mechanical)
- Beaugency
- Beauharnais
- Beawar
- Bebop
- Beekeeping
- Beer Hall Putsch
- Beer–Lambert law
- Beijing
- Beijing Capital International Airport
- Belaya (Kama)
- Belessa River
- Belgian Revolution
- Belgorod
- Belief
- Belize
- Belize City
- Bellary
- Bellman–Ford algorithm
- Belluno
- Belly dance
- Belomancy
- Beloved (novel)
- Belt of Venus
- Bengali language
- Benghazi
- Bengkulu
- Bengt Erland Fogelberg
- Benin
- Benishangul-Gumuz Region
- Benjamin Nottingham Webster
- Benjamin Whichcote
- Benue State
- Berber languages
- Berdychiv
- Bereans
- Bergamo
- Bergues
- Berhampore
- Bering Strait crossing
- Beringia
- Berkshire
- Bermuda
- Bernard Partridge
- Bernard Saisset
- Bernardino Rivadavia Natural Sciences Argentine Museum
- Bernardo Pasquini
- Bernardo Santareno
- Berry
- Berthold von Henneberg
- Bertrand Clauzel
- Beryllium carbide
- Bessemer, Alabama
- Best current practice
- Bettani
- Bettina von Arnim
- Betws-y-Coed
- Bevel
- Bey
- Beyond Good and Evil
- Bhatpara
- Bhattiana
- Bhavnagar
- Bhilwara
- Bhishti
- Bhiwandi
- Bhutan
- Bible translations into English
- Biblioteca Nacional de España
- Bicol Region
- Bicycle
- Bicycle boulevard
- Bielefeld
- Big Bang nucleosynthesis
- Big O notation
- Big band
- Bihari languages
- Bijapur
- Bijnor
- Bikaner
- Bike lane
- Bilaspur, Chhattisgarh
- Bill (law)
- Binah (Kabbalah)
- Binary file
- Binary star
- Binary-code compatibility
- Binary-safe
- Bindery
- Binding energy
- Binomial nomenclature
- Biobío Region
- Biocentrism (ethics)
- Biochemical engineering
- Biological warfare
- Biomedical engineering
- Bioreactor
- Biosatellite
- Biotelemetry
- Bioterrorism
- Biratnagar
- Birch
- Bird anatomy
- Birthday
- Bisceglie
- Bishop
- Bishop's Stortford
- Biskra
- Bismarck, North Dakota
- Bit blit
- Bit manipulation
- Bit nibbler
- Bitola
- Bitwise operation
- Bjørnstjerne Bjørnson
- Black Beauty
- Black Forest
- Black Paintings
- Black Panther Party
- Black Saturday bushfires
- Black comedy
- Black dwarf
- Black grouse
- Black magic
- Black screen of death
- Black turtle bean
- Blackadder
- Blackitude Museum
- Blagoveshchensk
- Blanche Lamontagne-Beauregard
- Blasphemy law
- Blasphemy law in the United Kingdom
- Blaubeuren
- Bleak House
- Blended threat
- Blesmol
- Blessing
- Blink comparator
- Blister beetle
- Block cipher
- Blockade
- Blogger (service)
- Blood
- Blood Meridian
- Blood sugar level
- Blood transfusion
- Blood type
- Blue Heelers
- Blue Mountains (Pacific Northwest)
- Blue Ridge Mountains
- Bluebeard
- Blueberry
- Bluegrass music
- Blurred vision
- Boa Vista, Roraima
- Boar's Head Inn
- Boardman Robinson
- Boatswain
- Bob the Builder
- Bodenbach
- Bodil Ipsen
- Bodinayakkanur
- Bodle
- Bodleian Library
- Body armor
- Body art
- Body modification
- Boeing
- Boeing 707
- Boeing B-29 Superfortress
- Bog
- Bogor
- Bogra
- Bohdan Khmelnytsky
- Bohol
- Boiler feedwater
- Bokmål
- Boko Haram insurgency
- Boksburg
- Bolsheviks
- Bomb
- Bombardment
- Bombay Presidency
- Bombing of Guernica
- Bombyx mori
- Bon (festival)
- Bonacolsi
- Bonaire
- Bond albedo
- Bonn
- Bonnethead
- Book
- Book Cliffs
- Book of Exodus
- Bookcase
- Bookkeeping
- Boolean algebra
- Boolean satisfiability problem
- Boomerang
- Borassus flabellifer
- Borax
- Bordeaux
- Bordeaux mixture
- Boris Blacher
- Boris Godunov
- Boris Godunov (opera)
- Boris Kurakin
- Borland Database Engine
- Borneo lowland rain forests
- Boruca
- Boscoreale
- Bose–Einstein condensate
- Bosnian War
- Bosphorus Bridge
- Boss key
- Boston Computer Exchange
- Boston University
- Botanical Journal of the Linnean Society
- Bouaké
- Boudin
- Bougainvillea
- Boulder clay
- Boundary layer
- Bounded function
- Bounty (reward)
- Bovid hybrid
- Bow (watercraft)
- Bowden cable
- Boxer Rebellion
- Boy band
- Božena Němcová
- Braccio da Montone
- Brace (tool)
- Brachylogus
- Bracket
- Bradford
- Brahmanbaria
- Brahmo Samaj
- Brain damage
- Brainstem
- Brake
- Branching (polymer chemistry)
- Brandenburg Concertos
- Brandenburg Gate
- Brass
- Brazing
- Brazos River
- Breach of contract
- Breadboard
- Breadfruit
- Breadth-first search
- Breakdancing
- Breakdown (vehicle)
- Breakfast at Tiffany's (film)
- Breakfast television
- Breathalyzer
- Breathless (1960 film)
- Breed
- Brest, France
- Bretton Woods system
- Brick
- Brickwork
- Brideshead Revisited
- Bridge
- Bridge router
- Bridge tap
- Bridgeport, Connecticut
- Bridgetown
- Brigadier general
- Brigandine
- Brightness temperature
- Brijuni
- Brise soleil
- British Association for Counselling and Psychotherapy
- British Columbia
- British Indian Ocean Territory
- British Isles
- British Museum
- British Raj
- British literature
- British undergraduate degree classification
- Briton Ferry
- Brittany
- Brittany (dog)
- Broadcast journalism
- Broadcast syndication
- Broadvision
- Brockhaus Enzyklopädie
- Bronzing
- Brother Leo
- Brown dwarf
- Brucellosis
- Brumaire
- Brunei
- Bruno (bear actor)
- Bruno Bauer
- Brush
- Brussels sprout
- Brute-force search
- Bubble sort
- Bucaramanga
- Buchans
- Bucharest
- Buckingham Canal
- Buckingham π theorem
- Buckinghamshire
- Buckwheat
- Bud Freeman
- Budapest Metro
- Buddenbrooks
- Buddhist monasticism
- Buddleja
- Bude
- Buenos Aires
- Buffalo City Metropolitan Municipality
- Bugle
- Bugs Bunny
- Builders' rites
- Building code
- Building design
- Building society
- Bujumbura
- Bukuru
- Bulawayo
- Bulgarian language
- Bulgarian literature
- Bulletin of the American Mathematical Society
- Bullfighting
- Bullhead shark
- Bundelkhand
- Bunraku
- Bunyoro
- Buoyancy
- Buraidah
- Bureaucracy
- Burgenland
- Burgundian Netherlands
- Burgundy
- Burial
- Burke and Wills expedition
- Burkhard Christoph von Münnich
- Burkina Faso
- Burma campaign
- Burst mode (weapons)
- Burundi
- Bus garage
- Bus rapid transit
- Bus stop
- Busan
- Busan Metro
- Bushehr
- Bushel
- Business
- Business Process Execution Language
- Business logic
- Buskin
- Busy-hour call attempts
- Butuan
- Buxar
- Buys Ballot's law
- Bytecode
- Byzantine law
- Byzantine literature
- Bạch Long Vĩ Island
- C (programming language)
- C. S. Forester
- CBS
- CD ripper
- CDATA
- CFB Gagetown
- CIE 1931 color space
- CMYK color model
- CN Tower
- CNN
- COVID-19
- CP violation
- CS gas
- CSI: Crime Scene Investigation
- Caber toss
- Cachar district
- Cache (computing)
- Cadence
- Caen
- Cagli
- Cagot
- Cahn–Ingold–Prelog priority rules
- Cairns
- Cairo
- Cajatambo
- Cajeput oil
- Calabar
- Calabarzon
- Calasiao
- Calbe
- Calcium chloride
- Calculator
- Calgary
- Cali
- California
- California Academy of Sciences
- Caliphate
- Caliphate of Córdoba
- Call option
- Calligraphy
- Calling convention
- Calorescence
- Calorimeter
- Caltha palustris
- Calumpit
- Cambridge, Massachusetts
- Cambridgeshire
- Camera-ready
- Camille Desmoulins
- Camille Jordan (politician)
- Camillo Sitte
- Camillo Sivori
- Camilo Castelo Branco
- Campania
- Campo Grande
- Can-can
- Canaanite religion
- Canadian Broadcasting Corporation
- Canadian English
- Canadian Rockies
- Canadian dollar
- Cancelbot
- Cancer
- Cancer (constellation)
- Candelabra
- Candle
- Candon
- Cane rat
- Cangas del Narcea
- Cango Caves
- Caning (furniture)
- Canister shot
- Cannabis culture
- Cannabis ruderalis
- Cannes Film Festival
- Canon (music)
- Canonical coordinates
- Canonical ensemble
- Cantabri
- Cantabria
- Cantabrian Mountains
- Cantacuzino family
- Cantar de mio Cid
- Canterbury Region
- Canticle
- Cantilever bridge
- Canton of Schaffhausen
- Cantonese
- Cantonese opera
- Cape Breton Island
- Cape Colony
- Cape Lopatka
- Cape Miseno
- Cape Town
- Cape Verde
- Cape of Good Hope
- Capernaum
- Capetian dynasty
- Capital (radio network)
- Capital appreciation
- Capital gains tax
- Capitalism
- Capitalism, Socialism and Democracy
- Capo Colonna
- Captal
- Capua
- Car bomb
- Car wash
- Caracas
- Caracas Metro
- Caramelization
- Caravaca de la Cruz
- Caraway
- Carbon fibers
- Carbon-based life
- Carbon-fiber-reinforced polymers
- Carbonate rock
- Carbonated water
- Carboniferous
- Card game
- Card reader
- Cardiac monitoring
- Cardiac muscle
- Cardigan Welsh Corgi
- Cardinal (Catholic Church)
- Cardinal Richelieu
- Cardinal direction
- Cardoon
- Career
- Career counseling
- Cargo
- Cargo aircraft
- Caribbean
- Caricature
- Carigara
- Carina (constellation)
- Carl Friedrich Abel
- Carl Friedrich Gauss
- Carl Gustaf Nordin
- Carl Reinecke
- Carl von Rokitansky
- Carle Vernet
- Carlism
- Carlo Cassola
- Carlo Fea
- Carlo Felice Nicolis, conte di Robilant
- Carlo Filangieri
- Carlo Zeno
- Carlos Antonio López
- Carlos Arruza
- Carlos Luis de Borbón
- Carlos Raúl Villanueva
- Carlos de Sigüenza y Góngora
- Carmen Polo
- Carmina Burana
- Carnatic music
- Carnatic region
- Carnegie Corporation of New York
- Carnegie Mellon University
- Carnivorous plant
- Carnot heat engine
- Carol of the Bells
- Caroline Islands
- Carora
- Carpet
- Carrefour
- Carrier generation and recombination
- Carrizo Plain
- Carronade
- Carrying capacity
- Cart
- Carter Stanley
- Cartesian coordinate system
- Cartography
- Cartridge (firearms)
- Carúpano
- Casemate
- Casey at the Bat
- Cashier
- Cashmere wool
- Cassava
- Cassette tape
- Cassini–Huygens
- Cassius Dio
- Cast iron
- Castaway
- Caste War of Yucatán
- Castelfranco Emilia
- Castile and León
- Casting (metalworking)
- Castle Shannon, Pennsylvania
- Castrato
- Castries
- Cat on a Hot Tin Roof
- Catalytic converter
- Catamarca Province
- Catanduanes
- Catania
- Category theory
- Caterham
- Catharism
- Cathay Pacific
- Catherine Palace
- Catherine Sedley, Countess of Dorchester
- Catherine the Great
- Catholic school
- Catholicity
- Caucasus
- Caucasus Mountains
- Caudebec-en-Caux
- Causality
- Causality (physics)
- Cava de' Tirreni
- Cavalry
- Cave automatic virtual environment
- Cavite
- Ceará
- Cebu City
- Cegléd
- Celano
- Celestial cartography
- Celestial mechanics
- Celestial navigation
- Celje
- Cell wall
- Celle
- Cello
- Cellular multiprocessing
- Cellular network
- Cellular respiration
- Celtic Christianity
- Celtic Otherworld
- Celtis
- Celts
- Cementation (geology)
- Cemetery
- Central European Free Trade Agreement
- Central Kalimantan
- Central Powers
- Central Valley (California)
- Central business district
- Central dogma of molecular biology
- Centrifugal pump
- Centrism
- Centronics
- Centuripe
- Century
- Cephalaspis
- Cephalonia
- Ceramic
- Ceramic glaze
- Cereal
- Ceremonial mace
- Ceremonial pipe
- Cetacea
- Ch'unchu
- Chachoengsao province
- Chaco Province
- Chaff
- Chagang Province
- Chaguanas
- Chain
- Chain mail
- Chainsaw
- Chakravarti (Sanskrit term)
- Chalcolithic
- Challenge–response authentication
- Chamfer
- Champagne (province)
- Champaran
- Champfleury
- Chandannagar
- Chandausi
- Chanel
- Changsha
- Changshu
- Changtang
- Changzhi
- Chania
- Channel One Russia
- Chanter
- Chao Phraya River
- Chaoshan
- Chaozhou
- Chapter (books)
- Chapter house
- Character Map (Windows)
- Character arc
- Charadriiformes
- Charcoal
- Charcoal (art)
- Charged particle beam
- Charging station
- Charilaos Trikoupis
- Charlemagne
- Charles Albert of Sardinia
- Charles Annibal Fabrot
- Charles Bridge
- Charles Callahan Perkins
- Charles Edward Jennings
- Charles Ernest Beulé
- Charles Gordon Curtis
- Charles IX of Sweden
- Charles James Mathews
- Charles Jeremiah Wells
- Charles Joseph Chamberlain
- Charles Kemble
- Charles Lallemant
- Charles Maurice de Talleyrand-Périgord
- Charles Pictet de Rochemont
- Charles Ritchie, 1st Baron Ritchie of Dundee
- Charles Simon Clermont-Ganneau
- Charles Sumner (bishop)
- Charles Tilston Bright
- Charles University
- Charles Watson-Wentworth, 2nd Marquess of Rockingham
- Charles Wellington Furse
- Charles X
- Charles XII of Sweden
- Charles XV
- Charles de Gaulle Airport
- Charles du Fresne, sieur du Cange
- Charles-Irénée Castel de Saint-Pierre
- Charles-Jean-François Hénault
- Charleston, South Carolina
- Charlottetown
- Charon (moon)
- Charterparty
- Chartres
- Chartres Cathedral
- Charwoman
- Chassé
- Chat room
- Checheno-Ingush Autonomous Soviet Socialist Republic
- Chechnya
- Cheese
- Chefchaouen
- Chelif River
- Chemical bond
- Chemical element
- Chemical physics
- Chemical plant
- Chemical polarity
- Chemical reaction
- Chemical reaction engineering
- Chemical synthesis
- Chemical test
- Cheminformatics
- Chemisorption
- Chemist
- Chemistry
- Chemosh
- Chemostat
- Chemosterilant
- Chemotaxonomy
- Cheng Hao
- Chengalpattu
- Chengdu
- Cher (river)
- Cherchell
- Cherkasy
- Chernobyl disaster
- Cherokee Nation
- Cherrapunji
- Cherry blossom
- Chesapeake Bay Bridge–Tunnel
- Chespirito (TV series)
- Chestnut
- Chevrolet
- Chevron Corporation
- Chhindwara
- Chi-squared distribution
- Chiang Hung
- Chiavari
- Chiavenna
- Chiba (city)
- Chiba Prefecture
- Chicago
- Chicago Loop
- Chicago Sun-Times
- Chicago Tribune
- Chicken
- Chickpea
- Chiclayo
- Chihuahua City
- Child murder
- Childebert II
- Children's literature
- Chilean National Museum of Fine Arts
- Chilean Sea
- Chili pepper
- Chillianwala
- Chimor
- Chin State
- China–United Kingdom relations
- Chinese New Year
- Chinese cabbage
- Chinese calendar
- Chinese dragon
- Chinese economic reform
- Chinese herbology
- Chinese language
- Chinese literature
- Chinese opera
- Chinese philosophy
- Chinese zodiac
- Chino cloth
- Chip on board
- Chirostomias
- Chisel
- Chitradurga district
- Chitrakoot Dham (Karwi)
- Chitral
- Chiusi
- Chișinău
- Chlorofluorocarbon
- Choctaw Nation of Oklahoma
- Choir
- Choke (electronics)
- Chokhmah
- Cholecystography
- Cholet
- Chongjin
- Chongqing
- Chord (music)
- Chord progression
- Choricius of Gaza
- Choy sum
- Christ the Redeemer (statue)
- Christchurch
- Christendom
- Christian August Vulpius
- Christian August, Prince of Anhalt-Zerbst
- Christian Democratic Union of Germany
- Christian Dotremont
- Christian II of Denmark
- Christian IV of Denmark
- Christian angelology
- Christian de Castries
- Christian democracy
- Christian eschatology
- Christian mission
- Christian music
- Christian philosophy
- Christian socialism
- Christian the Younger of Brunswick
- Christiana Horton
- Christianization of Bulgaria
- Christianization of Scandinavia
- Christians
- Christmas Evans
- Christmas Eve
- Christmas Island
- Christmas carol
- Christmas music
- Christmas tree
- Christoph Bernhard von Galen
- Christoph Friedrich Nicolai
- Christopher Jacob Boström
- Christopher Wren
- Christopher, Count of Oldenburg
- Chroma subsampling
- Chromosomal translocation
- Chronology
- Chronology of the universe
- Chronometry
- Chthonic
- Chubut Province
- Chunar
- Church Divinity School of the Pacific
- Church architecture
- Church music
- Church of England
- Church of the Holy Sepulchre
- Church–Turing thesis
- Chuuk Lagoon
- Chuuk State
- Chu–Han Contention
- Chōnin
- Cicero
- Cichlid
- Ciliate
- Cilicia
- Cinderella
- Cinderella (Prokofiev)
- Cinema of Mexico
- Cinema of New Zealand
- Cinema of Spain
- Cinema of the Soviet Union
- Cinematography
- Cinquecento
- Circle of latitude
- Circuit design
- Circus
- Cirebon
- Cirencester
- Cirrocumulus cloud
- Citation (horse)
- Citgo
- Citizenship
- Citric acid cycle
- City of Tshwane Metropolitan Municipality
- Ciudad Guayana
- Ciudad del Este
- Civil code
- Civil disorder
- Civil engineering
- Civil rights movements
- Clam
- Clamp (tool)
- Clara Novello
- Class (set theory)
- Class consciousness
- Class-4 telephone switch
- Classic Mac OS
- Classical antiquity
- Classical mechanics
- Classical period (music)
- Classical swine fever
- Claude Fauchet (revolutionist)
- Claude Fournier (revolutionary)
- Claude de Bourdeille, comte de Montrésor
- Clavicle
- Clear-air turbulence
- Clement Charles Julian Webb
- Clements Kadalie
- Cleopas
- Clergy
- Clermont-l'Hérault
- Client (computing)
- Cliff
- Cliff effect
- Climate change feedback
- Clitunno
- Clivia
- Clock face
- Closed shop
- Closing argument
- Clothes dryer
- Clothes moth
- Cloudburst
- Clown
- Club (organization)
- Club (weapon)
- Clusium
- Clustered file system
- Clutch
- Cluttering
- Clément Marot
- Coach (bus)
- Coast
- Coast Salish
- Coastal management
- Coat of arms
- Coati
- Coaxial cable
- Cobrowsing
- Coca
- Cochabamba
- Coconut
- Cocos (Keeling) Islands
- Code bloat
- Code of law
- Codeine
- Coffin
- Cognitive science
- Coherence (physics)
- Cohesion (chemistry)
- Coiba
- Col de Montgenèvre
- Colchis
- Cole Younger
- Colgate-Palmolive
- Collage
- Collagen
- Collation
- Collective farming
- College
- Colligative properties
- Collimator
- Cologne Cathedral
- Cologne mark
- Colon (punctuation)
- Colonel
- Colonialism
- Color
- Color Force
- Color calibration
- Color cycling
- Color gel
- Color television
- Color theory
- Color vision
- Colour revolution
- Columella
- Column
- Coma
- Comanche
- Combat helmet
- Combinatorics
- Combustion
- Comedian
- Comedy film
- Command of the sea
- Command-line interface
- Commander
- Commercial area
- Commissariat
- Common bream
- Common knowledge (logic)
- Common logarithm
- Common nightingale
- Commonwealth of Nations
- Communication studies
- Communism
- Communist revolution
- Commuter rail
- Commuter town
- Comoros
- Compact disc
- Compact star
- CompactFlash
- Company union
- Comparability
- Comparative linguistics
- Comparison (grammar)
- Comparison of disk cloning software
- Comparison of the imperial and US customary measurement systems
- Competition (economics)
- Compiler
- Complementary DNA
- Complex number
- Complex volcano
- Complutense University of Madrid
- Composition (visual arts)
- Compound bow
- Comprehensive metabolic panel
- Compress
- Compressive strength
- Compromise of Nobles
- Comptonia peregrina
- Computational science
- Computer
- Computer Go
- Computer Press Association
- Computer animation
- Computer appliance
- Computer architecture
- Computer display standard
- Computer emergency response team
- Computer file
- Computer monitor
- Computer mouse
- Computer museum
- Computer simulation
- Computer-aided design
- Computer-aided engineering
- Computer-integrated manufacturing
- Conceptions of God
- Concert
- Concerto
- Concerto for Two Violins (Bach)
- Concessions in China
- Concierto de Aranjuez
- Conciliation
- Concrete
- Concurrent computing
- Condottiero
- Confederation of the Rhine
- Conference call
- Confessions (Augustine)
- Confidentiality
- Confirmation
- Conflict resolution
- Confucian art
- Confucius
- Conglomerate (company)
- Congo Free State
- Congregational church
- Congress of Aix-la-Chapelle (1748)
- Congress of Berlin
- Congress of Vienna
- Connacht
- Connecticut Colony
- Conrad Ferdinand Meyer
- Conscription
- Conservation of energy
- Conservation of mass
- Conserved quantity
- Consignment
- Consonant
- Conspiracy (criminal)
- Constant angular velocity
- Constant of integration
- Constantin von Tischendorf
- Constantine, Algeria
- Constantinos Apostolou Doxiadis
- Constanța
- Constitution
- Constitutional Commission
- Constitutional amendment
- Constitutional monarchy
- Construction
- Construction aggregate
- Construction engineering
- Constructivism (art)
- Consul (representative)
- Consulate
- Container format
- Container ship
- Contemporary art
- Contemporary ballet
- Contemporary classical music
- Content delivery network
- Context-free grammar
- Context-sensitive help
- Continental philosophy
- Continuity (fiction)
- Contortion
- Contraband
- Contract killing
- Contract of sale
- Contraction (grammar)
- Control character
- Controlled burn
- Controlled-access highway
- Conté
- Conurbation
- Convention (meeting)
- Conversion of units
- Conversion to Judaism
- Convertible bond
- Conveyancing
- Conveyor system
- Conviction
- Convolvulaceae
- Cooch Behar district
- Cooking
- Cooking apple
- Cooking banana
- Cooking oil
- Coolgardie, Western Australia
- Cooling tower
- Cooper (profession)
- Coot
- Copper Canyon
- Cops (TV program)
- Copy protection
- Coquimbo Region
- Cor anglais
- Cordillera Administrative Region
- Corfinium
- Coriander
- Cornelius Jansen
- Cornish Rex
- Corona discharge
- Corporate bond
- Corporate tax
- Corps of Gendarmerie of Vatican City
- Corpus Christi, Texas
- Corpus Juris Civilis
- Corrosion
- Corruption
- Corsica
- Cortisol
- Corvette
- Corvus
- Cosmic distance ladder
- Cosmology
- Cosmopolitan (magazine)
- Cosmotron
- Cotentin Peninsula
- Cottage furniture
- Cotter (farmer)
- Cotton
- Cotylorhynchus
- Coulomb constant
- Council of Europe
- Council of the European Union
- Counsel
- Count
- Count Claude Florimond de Mercy
- Counter-Reformation
- Counterculture
- Countercurrent chromatography
- Countercurrent exchange
- Counties of Sweden
- Counting board
- Country music
- Counts and dukes of Penthièvre
- County Antrim
- County Armagh
- County Cavan
- County Down
- County Durham
- County Galway
- County Kildare
- County Mayo
- County Monaghan
- County Tipperary
- County of Flanders
- County of Foix
- Coupling
- Coupling Facility
- Courage the Cowardly Dog
- Courier
- Courland
- Court leet
- Court of quarter sessions
- Court-martial
- Cover version
- Cowasji Jehangir Readymoney
- Cowl
- Craft
- Cranberry
- Crane (machine)
- Craniometry
- Creationism (soul)
- Creative Commons
- Credential
- Creil
- Cremation
- Cremorne Gardens, London
- Creole peoples
- Crescens
- Cressida
- Cretan Bull
- Crime
- Crime film
- Crimean Khanate
- Crimes against humanity
- Criminal justice
- Criminal law
- Criminal procedure
- Crisis of the Third Century
- Crispus
- Critical mass
- Critical thinking
- Criticism of religion
- Croatia
- Crocotta
- Cron
- Croquet
- Cross River State
- Cross-browser compatibility
- Cross-cultural communication
- Crossbar switch
- Crossover cable
- Crossroads (British TV series)
- Crucible
- Crucifixion
- Cruise missile
- Crux
- Cryptanalysis
- Cryptography
- Cryptophyceae
- Crystal
- Crystal system
- Crystallization
- Crédit Agricole
- Cuban Missile Crisis
- Cuban Revolution
- Cubic centimetre
- Cubic foot
- Cubic function
- Cubic inch
- Cubic metre per second
- Cubic mile
- Cubic yard
- Cuckoo
- Cuenca, Ecuador
- Cult image
- Cultivator
- Cultural conservatism
- Culture of Africa
- Culture of Asia
- Culture of Buddhism
- Culture of Europe
- Culture of Nepal
- Culture of South America
- Cumania
- Cumaná
- Cumbria
- Cummingtonite
- Cumulative distribution function
- Cumulus mediocris cloud
- Cuniculture
- Curicó
- Currency
- Currency symbol
- Currency union
- Current source
- Curriculum
- Curriculum vitae
- Cursor (user interface)
- Curt Richter
- Customs
- Cut bank
- Cuticle
- Cuttack
- Cuttlefish
- Cuyapo
- Cyborg
- Cycad
- Cyclone Tracy
- Cycolor
- Cylindrical coordinate system
- Cymbal
- Cyrano de Bergerac (play)
- Cyrix
- Cyrus McCormick
- Czech Silesia
- Cádiz
- Córdoba Province, Argentina
- Córdoba, Argentina
- Córdoba, Spain
- Călărași
- DNA ligase
- DSL modem
- DVD
- Dabbasheth
- Dacia
- Dada
- Dado rail
- Dahlia
- Daikon
- Daimiel
- Dainik Bhaskar
- Daisy chain (electrical engineering)
- Daisy wheel printing
- Dakar
- Dali City
- Dalit
- Dalton Plan
- Dalziel
- Dam
- Damages
- Damara people
- Damaraland
- Damascening
- Damghan
- Dammartin-en-Goële
- Damoh
- Dance (Matisse)
- Dance music
- Dance notation
- Dancehall
- Dandong
- Daniel Bliss
- Daniel Gregory Mason
- Daniel Hack Tuke
- Daniel Rock
- Daniel Steibelt
- Daniël Heinsius
- Dante Alighieri
- Danube
- Dao (Chinese sword)
- Daqing
- Dar es Salaam
- Dargai
- Dark Shadows
- Dark nebula
- Dasht-e Kavir
- Dasyuromorphia
- Data Facility Storage Management Subsystem (MVS)
- Data and information visualization
- Data cluster
- Data collection
- Data corruption
- Data definition language
- Data recovery
- Data sheet
- Data storage
- Database
- Dataquest
- Datia
- Daugavpils
- Davao Region
- David (Michelangelo)
- David Dalrymple, Lord Hailes
- David Dudley Field II
- David Reeb
- Dawn
- Day of the Dead
- Day's journey
- Daytime
- De Havilland Canada Dash 8
- De revolutionibus orbium coelestium
- De-extinction
- Dead Sea
- Dead bolt
- Dead leaf mantis
- Death
- Death (personification)
- Death Valley
- Death of a Salesman
- Debate
- Debt
- Decay product
- Deccan Plateau
- Deceleration parameter
- Deception (criminal law)
- Decimal
- Deck tennis
- Declarative programming
- Declension
- Decolonization
- Decolonization of Asia
- Decolonization of the Americas
- Decomposition
- Decretal
- Defamation
- Defense (legal)
- Defense Intelligence Agency
- Defibrillation
- Deflation
- Deforestation
- Deformation (engineering)
- Degaussing
- Degree day
- Degrees of freedom
- Dehiwala-Mount Lavinia
- Dehradun
- Deinterlacing
- Deism
- Del Monte Foods
- Delaware
- Delaware Colony
- Delhi Metro
- Delian League
- Delict
- Delphi
- Demand response
- Demantoid
- Demarcation point
- Dementia
- Demidov
- Demigod
- Democracy
- Democratic Republic of the Congo
- Demodulation
- Demography
- Dendermonde
- Dendrochronology
- Denehole
- Denial-of-service attack
- Denis Diderot
- Denison Olmsted
- Denmark Strait
- Dennewitz
- Dennis the Menace (1959 TV series)
- Denpasar
- Dental braces
- Dentures
- Denver
- Department of Ancash
- Department of transportation
- Deployment environment
- Depth-first search
- Der Ring des Nibelungen
- Der Spiegel
- Dera Ghazi Khan
- Derby
- Derbyshire
- Derivative (finance)
- Derivatives market
- Desalination
- Desegregation busing
- Desert Orchid
- Desiderius
- Desktop publishing
- Determiner
- Detonator
- Deuterium
- Deutsch-Wagram
- Deutsche Welle
- Deutsches Museum
- Developmental psychology
- Deviance (sociology)
- Devon
- Dew
- Dewan
- Dewas
- Dextropropoxyphene
- Dhamar, Yemen
- Dhanbad
- Dhar
- Dharmakāya
- Dhol
- Dholpur
- Dholpur State
- Dhule
- Diagnostic board
- Diamondback terrapin
- Diana (mythology)
- Diaspora
- Diastereomer
- Dichlorodifluoromethane
- Dickinson W. Richards
- Dictation machine
- Didache
- Didacticism
- Die Zeit
- Die casting
- Diego Duque de Estrada
- Diego Laynez
- Diego de Valera
- Dieldrin
- Dielectric heating
- Diesel locomotive
- Diet (nutrition)
- Difference engine
- Differential (mechanical device)
- Differential psychology
- Differential pulse-code modulation
- Digestion
- Digital Audio Tape
- Digital Revolution
- Digital clock
- Digital currency
- Digital electronics
- Digital multimedia broadcasting
- Digital painting
- Digital rights management
- Digital signature
- Digital television
- Digital video effect
- Digital wallet
- Digital-to-analog converter
- Diglossia
- Dilapidation
- Dilbert
- Dili
- Dill
- Dime museum
- Dimity
- Dinajpur
- Dinant
- Dingo
- Dining room
- Dinshaw Maneckji Petit
- Diocese
- Diode bridge
- Dioecy
- Dion of Syracuse
- Diploma
- Diplomacy
- Diplomat
- Diplomatic cable
- Diplomatic immunity
- Diplomatic rank
- Direct coupling
- Direct current
- Direct examination
- Direct3D
- DirectX
- Directional derivative
- Director's cut
- Dirichlet problem
- Dirk Rafaelsz Camphuysen
- Dirty bomb
- Disability
- Disaster response
- Disc harrow
- Disc jockey
- Disc tumbler lock
- Discrete mathematics
- Discworld
- Disgust
- Disk compression
- Disk formatting
- Disk image
- Disk mirroring
- Disk storage
- Dispensary
- Dispersion (chemistry)
- DisplayPort
- Disproportionation
- Dispute resolution
- Dissimilation
- Dissociation (chemistry)
- Dissolution of Czechoslovakia
- Dissolution of the Soviet Union
- Distance
- District
- Divergent boundary
- Divinity
- Division (mathematics)
- Division by zero
- Division of labour
- Dixieland
- Diyar Al Muharraq
- Djelfa
- Djerba
- Djibouti
- Dobbs Ferry, New York
- Dobermann
- Doctor Faustus (novel)
- Doctor of Philosophy
- Doctorate
- Doctrine
- Document file format
- Dog show
- Dog-tooth
- Dogmatic theology
- Dogra dynasty
- Dogras
- Dogs Playing Poker
- Dolomedes
- Domain Name System
- Domain drop catching
- Domain name registrar
- Domain registration
- Dome of the Rock
- Domestic worker
- Domesticated quail
- Domestication
- Dominance (genetics)
- Dominic Barberi
- Dominica
- Dominical letter
- Dominican Republic
- Domitius Marsus
- Don Budge
- Don Juan Manuel
- Don Quixote
- Donagh MacDonagh
- Donald Duck
- Donald Ogden Stewart
- Donald Smith, 1st Baron Strathcona and Mount Royal
- Donghak
- Dongting Lake
- Dongzhi (solar term)
- Dora the Explorer
- Dortmund–Ems Canal
- Dots per inch
- Double Ninth Festival
- Double bass
- Double-entry bookkeeping
- Double-slit experiment
- Douglas DC-3
- Downhill creep
- Downton Abbey
- Drag queen
- Dragon Boat Festival
- Drainage
- Drake Passage
- Drama
- Dravidian languages
- Drawbridge
- Drawing (manufacturing)
- Drawing board
- Dred Scott v. Sandford
- Drenthe
- Dresden
- Dreyfus affair
- Drilling
- Driving under the influence
- Drizzle
- Drosophila melanogaster
- Drug class
- Drum and bass
- Drum machine
- Dry rot
- Drywall
- Duchy of Brittany
- Duchy of Burgundy
- Duchy of Savoy
- Ductility
- Dudley Buck
- Dudweiler
- Duisburg
- Duke of Albany
- Duke of Atholl
- Duke of Devonshire
- Duke of Kent
- Duke of Marlborough (title)
- Duke of Norfolk
- Duke of Orléans
- Duke of Richmond
- Duke of York
- Dulcinea del Toboso
- Dumanjug
- Dunedin
- Duque de Caxias, Rio de Janeiro
- Durand Line
- Durango City
- Durham, North Carolina
- Durrani Empire
- Dusk
- Dust storm
- Dutch Golden Age
- Dutch-language literature
- Dynamic demand (electric power)
- Dynamic programming
- Dynamics (music)
- Dysnomia (moon)
- Dysteleology
- Dzhugdzhur Mountains
- Dániel Berzsenyi
- Dönmeh
- Düsseldorf
- ENIAC
- ESPN
- ETH Zurich
- Eagle
- Earl Kitchener
- Earl of Airlie
- Earl of Carlisle
- Earl of Crawford
- Earl of Douglas
- Earl of Eglinton
- Earl of Egremont
- Earl of Guilford
- Earl of Home
- Earl of Jersey
- Earl of Kincardine
- Earl of Leicester
- Earl of Mornington
- Earl of Radnor
- Earl of Rosslyn
- Earl of Rothes
- Earl of Salisbury
- Earl of Seafield
- Earl of Tyrconnell
- Early Middle Ages
- Early modern period
- Earring
- Earth Day
- Earth ellipsoid
- Earth science
- Earth-leakage circuit breaker
- Earthquake warning system
- Earthrise
- Earthworks (engineering)
- East Africa
- East Antarctica
- East Asia
- East Asian Monsoon
- East China
- East Coast Swing
- East Germany
- East London, Eastern Cape
- East Riding of Yorkshire
- East South Central states
- East Sussex
- Easter Island
- Easter traditions
- Eastern Bengal and Assam
- Eastern Cape
- Eastern Front (World War II)
- Eastern Interconnection
- Eastern Orthodox Church
- Eastern Visayas
- Eastern newt
- Eastern philosophy
- East–West Schism
- East–West dichotomy
- Easy listening
- Ebenezer Scrooge
- Ebingen
- Ebro
- Ecballium
- Ecclesfield
- Ecclesiastes
- Echternach
- Eclipse
- Economic Community of West African States
- Economic and Monetary Union of the European Union
- Economic policy
- Economy of Argentina
- Economy of China
- Economy of Japan
- Economy of Russia
- Economy of Saudi Arabia
- Economy of Spain
- Economy of Vietnam
- Economy of the Philippines
- Ecotheology
- Ecuador
- Edible mushroom
- Edmund Bonner
- Edo State
- Edo period
- Eduard Vogel
- Education
- Educational software
- Educational technology
- Edward FitzGerald (poet)
- Edward Gibbon Wakefield
- Edward Shuter
- Edward Sterling
- Edward Wedlake Brayley
- Edwards Amasa Park
- Effelsberg 100-m Radio Telescope
- Effigy
- Egalitarianism
- Egg
- Eggplant
- Egyptian Arabic
- Egyptian revolution of 1952
- Ehime Prefecture
- Eibenstock
- Eichstätt
- Eight Banners
- Eilenburg
- Ekpe
- El Dorado
- El Escorial
- El Hierro
- El Jadida
- El Mundo (Spain)
- El Paso, Texas
- El Puerto de Santa María
- El Santo
- El Torcal de Antequera
- Elamite language
- Elastic collision
- Elastic modulus
- Elasticity (physics)
- Elbow
- Eleatics
- Electorate of Trier
- Electret
- Electric arc
- Electric battery
- Electric charge
- Electric guitar
- Electric light
- Electric motor
- Electric stove
- Electric susceptibility
- Electrical cable
- Electrical discharge machining
- Electrical load
- Electrical network
- Electrical substation
- Electrical telegraph
- Electrical wiring
- Electricity market
- Electrochemical cell
- Electromagnet
- Electromagnetic interference
- Electromagnetic shielding
- Electromagnetic wave equation
- Electrometallurgy
- Electronic component
- Electronic keyboard
- Electronic lock
- Electronic musical instrument
- Electrophilic addition
- Electrosynthesis
- Electroweak star
- Eleonora Duse
- Elephanta Island
- Eleusine coracana
- Elevator
- Elevator (aeronautics)
- Elevator algorithm
- Elizabeth City County, Virginia
- Elmina
- Elswick, Newcastle upon Tyne
- Eltville
- Elyon
- Emancipation Proclamation
- Embarrassment
- Embezzlement
- Embryophyte
- Emergency management
- Eminent domain
- Emir
- Emirate of Sicily
- Emission nebula
- Emlyn
- Emmanuel-Armand de Richelieu, duc d'Aiguillon
- Emmy Noether
- Emoticon
- Emperor
- Emperor Taizu of Song
- Emperor of Japan
- Emphyteusis
- Empire
- Empire (magazine)
- Empire style
- Empirical formula
- Employment agency
- Enamel paint
- Encoignure
- Encyclopedia
- Encyclopædia Britannica Eleventh Edition
- End of the Han dynasty
- Endianness
- Endoscopy
- Endospore
- Energy
- Energy conversion efficiency
- Engineer
- Engineering
- Engineering design process
- English Channel
- English Civil War
- English literature
- English units
- Engraving
- Enrico Cialdini
- Entablature
- Enthalpy of vaporization
- Entity
- Entrepreneurship
- Entrepôt
- Entropy (information theory)
- Entry point
- Envelope
- Environmental communication
- Environmental engineering
- Environmental remediation
- Epicyclic gearing
- Epidermis (botany)
- Epigraphy
- Epiphany (holiday)
- Epistemology
- Epistle of James
- Epode
- Equal pay for equal work
- Equality (mathematics)
- Equation
- Equation solving
- Equations for a falling body
- Equinox
- Equipartition theorem
- Equisetum
- Equity (finance)
- Eraser
- Erba-Odescalchi
- Eretria
- Erfurt Union
- Erie Canal
- Erie, Pennsylvania
- Erlking
- Erlkönig
- Ermete Novelli
- Ernest Courtot de Cissey
- Ernest Guiraud
- Ernest Legouvé
- Ernest Meissonier
- Ernest, Elector of Saxony
- Ernst Friedrich Poppo
- Erotic literature
- Error detection and correction
- Eruption of Mount Vesuvius in 79 AD
- Esaias Boursse
- Escalation clause
- Escarpment
- Eschatology
- Esna
- Esotropia
- Esperanto
- Espoo
- Espírito Santo
- Essaouira
- Essay
- Estate agent
- Estates General (France)
- Estates General of 1789
- Estates of the realm
- Esteban Manuel de Villegas
- Estonia
- Estonian language
- Eswatini
- Etah
- Ethics (Spinoza book)
- Ethiopian Civil War
- Ethiopian Highlands
- Ethiopian Orthodox Tewahedo Church
- Ethnic group
- Ethnography
- Ethology
- Etymology
- Eublepharis
- Euclidean vector
- Eugène Rouher
- Euler equations (fluid dynamics)
- Euphemism
- Euphonium
- Euphronios
- Eurasian Plate
- Eurasian carp
- Euroclydon
- Euronews
- European Coal and Steel Community
- European Space Agency
- European Union legislative procedure
- European dragon
- European eel
- European exploration of Africa
- European fallow deer
- European shag
- European wars of religion
- Evangelical Association
- Evangelical Synod of North America
- Evangelical Union (Scotland)
- Evangelical United Brethren Church
- Evaporation
- Evenks
- Event (probability theory)
- Evidence (law)
- Evolution of insects
- Evolution of reptiles
- Evolution of tetrapods
- Evolutionary origin of religions
- Ewha Womans University
- Ex post facto law
- Exam
- Excavator
- Exclamation mark
- Executive (government)
- Exegesis
- Existence
- Existentialism
- Exit interview
- Exotic atom
- Exotic matter
- Expansion of the universe
- Expansionism
- Experiment
- Exponential growth
- Expression (mathematics)
- Extensive farming
- External memory interface
- Extract
- Extract, transform, load
- Extraction (chemistry)
- Extractive metallurgy
- Extraterrestrial vortex
- Extreme weather
- Extrusion
- ExxonMobil
- Eye examination
- Ezekiel
- FFmpeg
- Fabry–Pérot interferometer
- Facial expression
- Factual television
- Faculty of Advocates
- Fairbanks, Alaska
- Faith and rationality
- Faith healing
- Falconry
- Faldstool
- Falerii
- Fall of Babylon
- Fallacy
- False imprisonment
- Familia Caritatis
- Familialism
- Family Ties
- Family farm
- Famine
- Fangchenggang
- Fantasy
- Faraday cage
- Faridabad
- Farmers' movement
- Faro (banking game)
- Faroe Islands
- Faroese language
- Farrukhabad
- Fascine
- Fashion journalism
- Fastener
- Fasti
- Father Damien
- Father Knows Best
- Fauna
- Fauresmith (industry)
- Fax
- Fax modem
- Feasible region
- Feast of Corpus Christi
- Federal District (Brazil)
- Federal Republic of Central America
- Federal district
- Federated States of Micronesia
- Federation of Australia
- Federico Confalonieri
- Felanitx
- Female reproductive system
- Feng shui
- Fengtai District
- Fennel
- Fenugreek
- Feral horse
- Ferdinand I of Bulgaria
- Ferdinand I of Portugal
- Ferdinand II of the Two Sicilies
- Ferdinand Magellan
- Ferdinand VII of Spain
- Ferdinand Walsin Esterhazy
- Ferdinand de Lesseps
- Ferdinand-Alphonse Hamelin
- Ferenc Kazinczy
- Ferentino
- Fermat's Last Theorem
- Fermentation
- Fermi gas
- Ferry
- Fertile Crescent
- Fever
- Fiber
- Fiber crop
- Fiberglass
- Fibroblast
- Fictitious force
- Field (computer science)
- Field gun
- Field research
- Field-effect transistor
- Field-programmable gate array
- Fifth generation of video game consoles
- Fig wasp
- Fighter aircraft
- Figueres
- Figure (horse)
- Figure-eight knot
- Fiji
- Fiji National University
- File format
- Filename extension
- Filigree
- Filling station
- Film
- Film editing
- Film festival
- Film genre
- Film score
- Filmi
- Filtration
- Final Cut Studio
- Final clause
- Financial accounting
- Financial market
- Fine-art photography
- Fingermouse
- Finite difference
- Finite element method
- Finland
- Finnish War
- Finnish language
- Finnish literature
- Finnish paganism
- Finno-Ugric languages
- Fiorenzo di Lorenzo
- Fipple
- Fire performance
- Fire safety
- Firearm
- Firefighting
- Fireplace mantel
- Firishta
- Firozabad
- First Battle of Bull Run
- First Battle of the Marne
- First Chechen War
- First Council of Nicaea
- First Epistle to Timothy
- First Indochina War
- First Liberian Civil War
- First Sino-Japanese War
- First language
- First-person narrative
- First-wave feminism
- Fish farming
- Fish hook
- Fishery
- Fishing line
- Fishing net
- Fishing reel
- Fishing rod
- Fitzhugh Lee
- Five Hegemons
- Five solae
- Five-star rank
- Fixed income
- Fixed point (mathematics)
- Flag of Algeria
- Flag of Argentina
- Flag of Brazil
- Flag of Colombia
- Flag of Iran
- Flag of Nigeria
- Flag of Thailand
- Flag of Turkey
- Flag of Ukraine
- Flag of the Democratic Republic of the Congo
- Flagellation
- Flame test
- Flamenco
- Flap (aeronautics)
- Flash (photography)
- Flash Gordon
- Flashlight
- Flat memory model
- Flatbed truck
- Flathead (fish)
- Flavian I of Antioch
- Flavien Ranaivo
- Flavour (particle physics)
- Flax
- Flemish Brabant
- Fletching
- Flevoland
- Flight attendant
- Flight length
- Flight of the Bumblebee
- Flight test
- Flintlock
- Float glass
- Floodplain
- Floor
- Floral design
- Florence
- Flores Island (Azores)
- Flounder
- Flow (mathematics)
- Flower
- Flowering plant
- Floyd–Warshall algorithm
- Flugelhorn
- Fluid
- Flush toilet
- Fly-by-wire
- Flying and gliding animals
- Flying column
- Flying junction
- Flying shuttle
- Foam
- Focal length
- Focus (optics)
- Fodder
- Foehn wind
- Foil (fencing)
- Folk dance
- Folk religion
- Folke Bernadotte
- Food and Drug Administration
- Food and drink prohibitions
- Food drying
- Food industry
- Food storage
- Foot-pound (energy)
- Football War
- Football hooliganism
- For He's a Jolly Good Fellow
- For Whom the Bell Tolls
- Forbidden mechanism
- Foreign worker
- Foreland basin
- Forensic science
- Forest floor
- Forestry
- Forge
- Forgery
- Forklift
- Formal fallacy
- Formal verification
- Formosan subterranean termite
- Fort-de-France
- Fortification
- Fortition
- Forward contract
- Foshan
- Foucault's Pendulum
- Foundations of mathematics
- Four-dimensional space
- Fourier-transform infrared spectroscopy
- Fourth Crusade
- Foxtrot
- Fra Diamante
- Fractional factorial design
- Fractional freezing
- Framjee Nasarwanjee Patel
- France in the Middle Ages
- Francesco Berni
- Francesco Caracciolo
- Franche-Comté
- Francis Hutcheson (philosopher)
- Francis I of the Two Sicilies
- Francis II, Duke of Brittany
- Francis Landey Patton
- Francis Marion
- Francis Sempill
- Franciscans
- Francisco Espoz y Mina
- Francisco Manuel de Mello
- Francisco Pradilla Ortiz
- Francken family
- Franco-Prussian War
- Francs-tireurs
- Frankenstein's monster
- Frankfurt
- Franks
- Franz Aepinus
- Franz Grillparzer
- Franz Josef Land
- François Arago
- François Cabarrus
- François Denis Tronchet
- François Guizot
- François Hemsterhuis
- François Louis Bourdon
- François Ponsard
- François Pétis de la Croix
- François Villon
- François d'Orléans, Prince of Joinville
- François de Beauvais, Seigneur de Briquemault
- François de Bourbon, Prince of Conti
- François de La Mothe Le Vayer
- François de Vendôme, duc de Beaufort
- François le Métel de Boisrobert
- François-André Danican Philidor
- François-Emmanuel Guignard, comte de Saint-Priest
- François-Joachim de Pierre de Bernis
- François-Marie, 1st duc de Broglie
- Frecciarossa
- Frederic Thesiger, 1st Baron Chelmsford
- Frederick Dielman
- Frederick Henry Marvell Blaydes
- Frederick III of Denmark
- Frederick William II of Prussia
- Free Church Federation
- Free France
- Free University of Berlin
- Free electron model
- Free jazz
- Free trade
- Free variables and bound variables
- FreeRTOS
- Freedom
- Freedom of information laws by country
- Freeze-drying
- Freiburg im Breisgau
- Freight transport
- French America
- French Connection
- French Directory
- French Guiana
- French Revolution of 1848
- French Revolutionary Wars
- French Southern and Antarctic Lands
- French and Indian War
- French architecture
- French colonization of the Americas
- French horn
- French language
- Frequency modulation
- Frequency-shift keying
- Frequentist inference
- Friar
- Friedrich Gottlieb Klopstock
- Friedrich Graf von Wrangel
- Friedrich Heinrich Jacobi
- Friedrich Hornemann
- Friedrich Hölderlin
- Friedrich Maximilian von Klinger
- Friedrich Rückert
- Friedrich Wilhelm Joseph Schelling
- Friesian horse
- Friesland
- Frieze
- Frigidarium
- Frisian freedom
- Frisian languages
- Fritz Herlen
- Friuli Venezia Giulia
- Fructose
- Fruit
- Fruit anatomy
- Frédéric Ozanam
- Frédérick Lemaître
- Fudan University
- Fuel
- Fujian
- Fujiwara clan
- Fukuoka Prefecture
- Fukuyama, Hiroshima
- Fula jihads
- Fula people
- Fulginiae
- Fulk Basset
- Full stop
- Full-text search
- Fumigation
- Function (mathematics)
- Function of several real variables
- Function word
- Functional group
- Funeral
- Fungi imperfecti
- Funnel cloud
- Fur seal
- Fur trade
- Furnace (central heating)
- Furniture
- Fuselage
- Futures contract
- Futures studies
- Fuzhou
- Fuzhou dialect
- Fyodor Alexeyevich Golovin
- Fyodor Buslaev
- Fédération Aéronautique Internationale
- Félix Faure
- Führer
- Füssen
- G. W. Steevens
- GF(2)
- Gabon
- Gabriel Monod
- Gaekwad dynasty
- Gaelic Ireland
- Gaetano Milanesi
- Gagauz people
- Gai lan
- Gaius (biblical figure)
- Gaius Licinius Stolo
- Gaius Verres
- Galactic tide
- Galangal
- Galați
- Galician language
- Galilean invariance
- Gallaudet University
- Galliformes
- Galoshes
- Galvanic series
- Galway
- Galápagos Islands
- Gamaliel Bailey
- Gambela Region
- Game design
- Game show
- Gamer
- Gamete
- Gaming computer
- Gamut
- Gan Chinese
- Ganapatya
- Gandaki River
- Gandhara
- Gang rape
- Ganges Delta
- Gangpur
- Ganjam
- Gansu
- Ganymede (mythology)
- Gapan
- Garfield
- Gas balloon
- Gas chromatography
- Gas engine
- Gas mask
- Gas-guzzler
- Gasket
- Gasoline
- Gaspare Tagliacozzi
- Gaston Maspero
- Gatehouse
- Gateway (telecommunications)
- Gaul
- Gaussian function
- Gauthier de Costes, seigneur de la Calprenède
- Gaziantep
- Gebhard Leberecht von Blücher
- Gematria
- Gemstone
- Gendarmerie
- Gender
- Gene expression
- Gene therapy
- Genealogy
- General Agreement on Tariffs and Trade
- General Electric
- General State Laws for the Prussian States
- General officer
- General strike
- General-purpose computing on graphics processing units
- General-purpose macro processor
- Generative grammar
- Genghis Khan
- Gennadius Scholarius
- Genoa
- Genoveva
- Genpei War
- Genre
- Genre fiction
- Gentrification
- Geodetic control network
- Geoffrey of Villehardouin
- Geoffrey the Baker
- Geographical zone
- Geography
- Geography of Chile
- Geography of England
- Geography of France
- Geography of Iraq
- Geography of Japan
- Geography of Pakistan
- Geography of Peru
- Geography of Russia
- Geography of Scotland
- Geography of South Africa
- Geography of Württemberg
- Geography of the United Kingdom
- Geography of the United States
- Geological hazard
- Geological history of Earth
- Geology of Mercury
- Geology of Venus
- Geology of the Moon
- Geomagnetic storm
- Geometric mean
- Geopolitics
- Georg August Schweinfurth
- Georg Hermes
- Georg Magnus Sprengtporten
- Georg Stiernhielm
- Georg von Frundsberg
- George Brydges, 6th Baron Chandos
- George Burroughs
- George Frederick Bodley
- George Frederick Cooke
- George Glas
- George Gliddon
- George Gordon, 2nd Marquess of Huntly
- George Henry Lewes
- George Hervey, 2nd Earl of Bristol
- George II Rákóczi
- George Macartney, 1st Earl Macartney
- George Nugent-Temple-Grenville, 1st Marquess of Buckingham
- George Sale
- George Stephen, 1st Baron Mount Stephen
- George Taubman Goldie
- George Taylor Denison III
- George Town, Cayman Islands
- George W. De Long
- George Washington
- George William Curtis
- Georges Cuvier
- Georges Darboy
- Georges Ohnet
- Georges d'Amboise
- Georgetown, Guyana
- Georgia Tech
- Geostrophic wind
- Geotechnical engineering
- Gerard ter Borch
- Gerhart Hauptmann
- German language
- German reunification
- German revolutions of 1848–1849
- Germanic languages
- Germiston
- Gervase of Canterbury
- Gesta Danorum
- Gestalt psychology
- Get Smart
- Geysir
- Ghaghara
- Gharana
- Ghassanids
- Ghazal
- Ghaziabad
- Ghent
- Ghent–Terneuzen Canal
- Ghost Festival
- Ghost call
- Giacomo Casanova
- Giacomo Leopardi
- Giant Void
- Giant squid
- Gibraltar
- Gift (law)
- Gihon Spring
- Gijón
- Gilbert de la Porrée
- Gilbertese language
- Gilding
- Gilligan's Island
- Gimbal
- Gimpo
- Gini coefficient
- Giolitti
- Giovanni Battista Martini
- Giovanni Battista Rinuccini
- Giovanni Pico della Mirandola
- Giovanni d'Andrea
- Girandole
- Giresun
- Girondins
- Giulia Grisi
- Giulio Alenio
- Giurgiu
- Giuseppe Cerutti
- Glamour (magazine)
- Glanders
- Glasgow
- Glass cockpit
- Glassblowing
- Glassworm
- Glaucoma
- Glide (API)
- Global Positioning System
- Globally Harmonized System of Classification and Labelling of Chemicals
- Glossary of computer graphics
- Glossary of computer hardware terms
- Glossary of textile manufacturing
- Glove
- Glucocorticoid
- Glucose
- Glycogen
- Glycolysis
- Gnome
- Gnome sort
- Gnosticism
- Goal seeking
- Goalpara
- Goat
- Gobi Desert
- Goguryeo
- Goguryeo–Sui War
- Goiás
- Gold (color)
- Gold Coast, Queensland
- Gold dredge
- Golden Temple
- Golden age of American animation
- Golden pheasant
- Goldfish
- Gombe State
- Gondar
- Good Friday Agreement
- Good Housekeeping
- Good and evil
- Google Maps
- Gorchakov
- Gorgon
- Goryeo
- Gospel music
- Gospel of John
- Goth subculture
- Gothic architecture
- Gothic paganism
- Gottfried August Bürger
- Gottfried Heinrich Graf zu Pappenheim
- Gottlieb Rabener
- Gotō Islands
- Gourami
- Government agency
- Government bond
- Governor
- Graaff-Reinet
- Grace in Christianity
- Gradient
- Graf
- Graffiti
- Grafting
- Grain
- Grain boundary
- Grain elevator
- Grain growth
- Grain trade
- Grammar
- Grammatical case
- Grammatical mood
- Grammatical number
- Grammatical tense
- Grammy Awards
- Gran Colombia
- Granada
- Grand Canal (China)
- Grand Duke Konstantin Pavlovich of Russia
- Grand Rapids, Michigan
- Grand duke
- Grand jury
- Granodiorite
- Granular convection
- Granulite
- Graph of a function
- Graphemics
- Graphic design
- Graphical user interface
- Graphite oxide
- Gravimetry
- Gravitational collapse
- Gravity assist
- Gravity current
- Great Barrier Reef
- Great Belt
- Great Bengal famine of 1770
- Great Commission
- Great Dane
- Great Depression
- Great Dividing Range
- Great Fish River
- Great Glen
- Great Hanshin earthquake
- Great Lakes
- Great Lakes region
- Great Leap Forward
- Great Learning
- Great Plague of Vienna
- Great Purge
- Great Rift Valley
- Great Seto Bridge
- Great Sioux War of 1876
- Great Smoky Mountains
- Great Stand on the Ugra River
- Great Turkish War
- Great Vowel Shift
- Greater London
- Greatest common divisor
- Greco-Turkish War (1897)
- Greece
- Greek Anthology
- Greek Orthodox Church
- Greek Orthodox Patriarchate of Alexandria
- Greek War of Independence
- Greek colonisation
- Greek sea gods
- Green Revolution
- Green manure
- Greenstone belt
- Gregorian calendar
- Gregorian chant
- Gregorio Allegri
- Grey crowned crane
- Grey market
- Greywacke
- Grid computing
- Griffin
- Grimma
- Grinding (abrasive cutting)
- Grodno
- Gross domestic product
- Ground motion
- Ground rent
- Ground tissue
- Groundskeeping
- Groundwater recharge
- Group 10 element
- Group 11 element
- Group 7 element
- Growing season
- Grozny
- Guaduas
- Guangdong
- Guangxi
- Guangzhou
- Guarani Aquifer
- Guarino da Verona
- Guatemala
- Guatemala City
- Guelphs and Ghibellines
- Guiding Light
- Guilin
- Guillaume Amfrye de Chaulieu
- Guillaume du Vair
- Guillaume-Mathieu Dumas
- Guillemot
- Guillén de Castro y Bellvis
- Guilt (law)
- Guinea
- Guinea (region)
- Guitar
- Guiyang
- Gulag
- Gulf Cooperation Council
- Gulf War
- Gulf of Fonseca
- Gulf of Mexico
- Gulf of St. Lawrence
- Gumi, North Gyeongsang
- Guna Yala
- Gunma Prefecture
- Gunsmoke
- Gustaf Philip Creutz
- Gustav Heinrich Wiedemann
- Gustav I of Sweden
- Gustav III
- Gustav IV Adolf
- Gustnado
- Guárico
- Gwalior
- Gwangju, Gyeonggi
- Gymnosperm
- Gyula Andrássy
- Gyumri
- Gédéon Tallemant des Réaux
- Gómez Manrique
- Gümüşhane
- H-alpha
- H-theorem
- HTTP cookie
- Haarlemmermeer
- Habesha peoples
- Hachinohe
- Hadith
- Hadrosauridae
- Hafiz (Quran)
- Hagia Sophia
- Hagåtña, Guam
- Haifeng County
- Haiku
- Hair
- Hair cell
- Hairdresser
- Hairstyle
- Haitian Creole
- Haitian Revolution
- Haj Ali Razmara
- Hajduk
- Hajdú-Bihar County
- Hakka people
- Hakodate
- Halide
- Halifax, Nova Scotia
- Hallucinogen
- Halo (optical phenomenon)
- Halothane
- Halting problem
- Hamamatsu
- Hamilton, Bermuda
- Hamilton, New Zealand
- Hamlet (place)
- Hammer throw
- Hampton Court Palace
- Han Chinese
- Han River (Korea)
- Hanbali
- Hand spinning
- Handcar
- Handgun holster
- Handover of Hong Kong
- Hangul
- Hangzhou
- Hanko, Finland
- Hanoi
- Hanover
- Hans Christoph Ernst von Gagern
- Hans Lassen Martensen
- Hanseatic League
- Happy Days
- Harassment
- Harbin Institute of Technology
- Hardiness zone
- Hardinge Giffard, 1st Earl of Halsbury
- Harian Metro
- Haridwar
- Harlem Renaissance
- Harmonic
- Harmonic mean
- Harmonic series (music)
- Harmonica
- Harrismith
- Harrow (tool)
- Harrow on the Hill
- Hartsfield–Jackson Atlanta International Airport
- Harvest
- Harvest festival
- Harz
- Hasdrubal Barca
- Hate crime
- Hathras
- Hattusa
- Hausa language
- Havana
- Haversack
- Hawaii
- Hawaiian Islands
- Hawaiian Renaissance
- Hawawir people
- Hay
- Hazaribagh
- Hazelnut
- Head crash
- Head of state
- Headache
- Headphones
- Headstander
- Health insurance
- Heard Island and McDonald Islands
- Hearing
- Hearing (law)
- Heat
- Heat exchanger
- Heat pump
- Heat pump and refrigeration cycle
- Heathrow Airport
- Heaven
- Heaviside step function
- Hebei
- Hebrew calendar
- Heian-kyō
- Heidelberg
- Heidelberg Catechism
- Height above sea level
- Heilongjiang
- Heilsbronn
- Heinrich Barth
- Heinrich Christian Boie
- Heinrich Karl Brugsch
- Heinrich Meibom (poet)
- Heinrich Wilhelm Ernst
- Heinrich von Brühl
- Helena, Montana
- Heliciculture
- Heligoland
- Helium
- Hell
- Hell's Kitchen (American TV series)
- Hellenistic period
- Hematology
- Hemodialysis
- Hemp
- Henan
- Hendurabi
- Hengam Island
- Hengqin
- Henri Brisson
- Henri Cernuschi
- Henri Dupuy de Lôme
- Henri Fantin-Latour
- Henri de Braekeleer
- Henri-Louis Duhamel du Monceau
- Henry Airay
- Henry Arthur Jones
- Henry Bathurst, 2nd Earl Bathurst
- Henry Benedict Stuart
- Henry Bennet, 1st Earl of Arlington
- Henry Cromwell
- Henry Ford
- Henry Fuseli
- Henry Grattan
- Henry Ireton
- Henry Irving
- Henry X, Duke of Bavaria
- Heparin
- Hepatitis C virus
- Heptarchy
- Heraklion
- Herbert Benjamin Edwardes
- Herbicide
- Hercule Poirot
- Herder
- Heresy
- Hermenegild Jireček
- Hermes
- Hermitage Museum
- Hermopolis
- Hermosillo
- Hernando de Soto
- Hernán
- Hernán Cortés
- Herodotus
- Herpetology
- Heterotrich
- Heulandite
- Hexasterophora
- Hezar Dastan
- Hickory
- Hidden camera
- Hienghène
- Hierarchy problem
- High Plains (United States)
- High-explosive anti-tank
- High-level programming language
- Higher education
- Highland
- Highway
- Hildburghausen
- Hindenburg disaster
- Hindi cinema
- Hindu temple architecture
- Hindustan (newspaper)
- Hinganghat
- Hinge
- Hinny
- Hipparcos
- Hippolyte Carnot
- Hippolyte Flandrin
- Hire purchase
- Hiri Motu
- Hiroshima Peace Memorial Museum
- Historical geography
- Historical race concepts
- Histories (Tacitus)
- History of Africa
- History of American Samoa
- History of Amsterdam
- History of Andorra
- History of Antigua and Barbuda
- History of Armenia
- History of Asia
- History of Australian rules football
- History of Azerbaijan
- History of Baden-Württemberg
- History of Baghdad
- History of Barbados
- History of Bavaria
- History of Bedfordshire
- History of Belize
- History of Bermuda
- History of Bosnia and Herzegovina
- History of Botswana
- History of Brazil
- History of British Columbia
- History of Brunei
- History of Burundi
- History of Cambodia
- History of Cape Town
- History of Cape Verde
- History of Central America
- History of Chechnya
- History of China
- History of Chinese Americans
- History of Colombia
- History of Colorado
- History of Corsica
- History of Crimea
- History of Curaçao
- History of Cyprus
- History of Dalmatia
- History of Denmark
- History of Dominica
- History of East Timor
- History of England
- History of Eritrea
- History of Estonia
- History of Eswatini
- History of Finland
- History of Flanders
- History of France
- History of Guam
- History of Guinea-Bissau
- History of Gujarat
- History of Hesse
- History of Hinduism
- History of Hong Kong
- History of Iceland
- History of Idaho
- History of India (1947–present)
- History of Israel
- History of Istanbul
- History of Jamaica
- History of Jordan
- History of Karachi
- History of Kentucky
- History of Kolkata
- History of Kyrgyzstan
- History of Latvia
- History of Lebanon
- History of Lesotho
- History of Liberia
- History of Libya under Muammar Gaddafi
- History of Los Angeles
- History of Macau
- History of Malawi
- History of Mali
- History of Manchuria
- History of Mauritania
- History of Mauritius
- History of Mexico
- History of Missouri
- History of Monaco
- History of Mongolia
- History of Montana
- History of Montenegro
- History of Morocco
- History of Moscow
- History of Myanmar
- History of Nagorno-Karabakh
- History of New Mexico
- History of New Orleans
- History of Nicaragua
- History of Niger
- History of North Macedonia
- History of Northumberland
- History of Nottinghamshire
- History of Ohio
- History of Oman
- History of Papua New Guinea
- History of Portugal
- History of Rio de Janeiro
- History of Romania
- History of Rwanda
- History of Saint Vincent and the Grenadines
- History of San Francisco
- History of San Marino
- History of Saxony
- History of Saxony-Anhalt
- History of Schleswig-Holstein
- History of Senegal
- History of Seychelles
- History of Sierra Leone
- History of Slovenia
- History of Solomon Islands
- History of Somalia
- History of South Africa
- History of South America
- History of South Carolina
- History of South Korea
- History of Sweden
- History of Sweden (800–1521)
- History of Taiwan
- History of Tanzania
- History of Texas
- History of Thailand
- History of Togo
- History of Transnistria
- History of Transylvania
- History of Trinidad and Tobago
- History of Uruguay
- History of Vietnam
- History of Virginia
- History of Vojvodina
- History of Washington, D.C.
- History of West Africa
- History of Wiltshire
- History of Xinjiang
- History of Yunnan
- History of Zimbabwe
- History of aesthetics
- History of alcoholic drinks
- History of anatomy
- History of arithmetic
- History of artificial life
- History of association football
- History of ballet
- History of biotechnology
- History of books
- History of broadcasting
- History of chemical engineering
- History of communication
- History of communism
- History of construction
- History of creationism
- History of cricket
- History of criminal justice
- History of cryptography
- History of dance
- History of encyclopedias
- History of fantasy
- History of feminism
- History of field hockey
- History of figure skating
- History of film
- History of general relativity
- History of geography
- History of golf
- History of human sexuality
- History of hurling
- History of knowledge
- History of literature
- History of materials science
- History of mathematics
- History of measurement
- History of medicine
- History of mobile phones
- History of money
- History of nuclear weapons
- History of online games
- History of organic farming
- History of photography
- History of professional wrestling
- History of science fiction
- History of software
- History of spaceflight
- History of submarines
- History of swimming
- History of terrorism
- History of the Azores
- History of the Basques
- History of the Cossacks
- History of the Democratic Republic of the Congo
- History of the Eastern Orthodox Church
- History of the English fiscal system
- History of the Faroe Islands
- History of the Isle of Man
- History of the Kurds
- History of the Latter Day Saint movement
- History of the Marshall Islands
- History of the Middle East
- History of the Netherlands
- History of the Northern Territory
- History of the Republic of China
- History of the Republic of the Congo
- History of the Ryukyu Islands
- History of the Turks and Caicos Islands
- History of the United States (1945–1964)
- History of the ancient Levant
- History of the automobile
- History of the bicycle
- History of the camera
- History of the chair
- History of the firearm
- History of the punk subculture
- History of the social sciences
- History of the tank
- History of the telephone
- History of theatre
- History of transport
- History of video games
- History of zoology (1859–present)
- Hittites
- Ho Chi Minh City
- Hoher Dachstein
- Hokkaido University
- Holguín
- Holi
- Holiday
- Hollow-point bullet
- Holmium
- Holodomor
- Holography
- Holstein Friesian cattle
- Holy Lance
- Holy Spirit in Christianity
- Home key
- Homeostasis
- Homeothermy
- Hominidae
- Homo erectus
- Homonuclear molecule
- Homopolar generator
- Honda
- Honduras
- Hong Kong International Airport
- Hong Kong Island
- Honiara
- Honour
- Hontheim
- Hope (dolphin)
- Hora (dance)
- Horace Bénédict de Saussure
- Horace Plunkett
- Horatio Balch Hackett
- Horatio Walpole, 1st Baron Walpole
- Horizon
- Horned gopher
- Horology
- Horror film
- Horseradish
- Horst and graben
- Hortensio Félix Paravicino
- Horticulture
- Hoshiarpur
- Hospital
- Hosur
- Hot air balloon
- Hotan
- Hotel California
- Hour angle
- House of Châtillon
- House of Commons of the United Kingdom
- House of Lords
- House of Romanov
- Housekeeper (domestic worker)
- Houston
- Houthi insurgency in Yemen
- Hovercraft
- Howdy Doody
- Hoyland
- Hsinchu
- Huaibei
- Huaraz
- Hubble's law
- Hubei
- Hubli
- Hubli–Dharwad
- Hudson Bay
- Huehuetenango
- Huehueteotl
- Hugh of Saint-Cher
- Hughes H-4 Hercules
- Hugli-Chuchura
- Huizhou Chinese
- Human back
- Human body temperature
- Human communication
- Human leg
- Human migration
- Human nutrition
- Human overpopulation
- Human reproductive system
- Human sexuality
- Humanities
- Human–computer interaction
- Humayun
- Humber Bridge
- Humboldt University of Berlin
- Humiliati
- Hunan
- Hundred Days
- Hundred Years' War
- Hungarian Dances (Brahms)
- Hungarian Revolution of 1848
- Hungarian language
- Hungary
- Hunting
- Huntsman spider
- Huronian glaciation
- Hurricane Katrina
- Husainid dynasty
- Hut
- Hutterites
- Hybrid security
- Hybrid vehicle
- Hyder Ali
- Hydraulic cylinder
- Hydraulic motor
- Hydrocharitaceae
- Hydrofluoric acid
- Hydrofoil
- Hydrogen line
- Hydrogenation
- Hydrography
- Hydrolysis
- Hydrostatic equilibrium
- Hydroxyl radical
- Hygiene
- Hygroscopy
- Hylidae
- Hymn
- Hyperbaric medicine
- Hypercharge
- Hypergraph
- Hyperspectral imaging
- Hyphaene thebaica
- Hyphen
- Hypnosis
- Hypocotyl
- Hyposmia
- Hypothec
- Hyōgo Prefecture
- Hégésippe Moreau
- I Dream of Jeannie
- I Love Lucy
- I Want to Hold Your Hand
- IBM Personal Computer
- IJsselmeer
- IOS
- IP address
- ITV (TV network)
- IUPAC nomenclature of organic chemistry
- Iberian Union
- Ibiza
- Ibn Hawqal
- Ibn Khaldun
- Ice
- Ice crystals
- Icelandic language
- Icerya purchasi
- Icon
- Iconography
- Idaho
- Idel-Ural State
- Identical particles
- If and only if
- If on a winter's night a traveler
- Ifni War
- Igbo language
- Ignaz Semmelweis
- Ignác Goldziher
- Ikebana
- Ikorodu
- Ilagan
- Ilkhanate
- Illegal drug trade
- Illyrians
- Ilmenau
- Ilocos Region
- Ilorin
- Ilyushin Il-76
- Image resolution
- Image scanner
- Immanuel Kant
- Impeachment
- Imperative programming
- Imperial units
- Impluvium
- Impossible color
- Impressionism in music
- Impressionist (entertainment)
- Impromptus (Schubert)
- Improvisation
- Improvisational theatre
- Improvised explosive device
- Imus
- In situ chemical oxidation
- In the Mood for Love
- Incheon
- Incineration
- Income statement
- Incompressible flow
- Indecent exposure
- Independence of Brazil
- Independence referendum
- Independent media
- Independent music
- Independent school
- Indian English
- Indian Railways
- Indian Rebellion of 1857
- Indian anna
- Indian literature
- Indian religions
- Indian rupee
- Indictable offence
- Indira Gandhi National Open University
- Indo-Aryan languages
- Indo-European languages
- Indo-Gangetic Plain
- Indo-Parthian Kingdom
- Indo-Scythians
- Indoctrination
- Indore
- Induction furnace
- Induction generator
- Indus Valley Civilisation
- Industrial Revolution
- Industrial engineering
- Industrial robot
- Inertia
- Inertial confinement fusion
- Inertial frame of reference
- Infant
- Infantry
- Infection
- Inflammation
- Inflation (cosmology)
- Infomercial
- Information design
- Information society
- Information technology audit
- Information warfare
- Infrared
- Inheritance tax
- Ink
- Inn
- Innovation
- Input hypothesis
- Insecticide
- Inside Passage
- Instability strip
- Instant camera
- Instant messaging
- Institution
- Instruction cycle
- Instrumental
- Insurance
- Integrated circuit
- Intel
- Intellectual disability
- Intelligence quotient
- Intensive care unit
- Interacting galaxy
- Interceptor aircraft
- Interchange (road)
- Intercity Express
- Interest
- Intergovernmental organization
- Interlingua
- Intermodal container
- Intermodal passenger transport
- Internal energy
- International Atomic Energy Agency
- International Court of Justice
- International Criminal Court
- International Date Line
- International Democrat Union
- International English
- International Monetary Fund
- International Organization for Migration
- International Space Station
- International Union for Conservation of Nature
- International trade
- Internet
- Internet Explorer
- Internet culture
- Internet forum
- Internet in Brazil
- Internet in Japan
- Internet in the United Kingdom
- Internet protocol suite
- Interpersonal communication
- Interplanetary medium
- Interrupt
- Intersection (road)
- Interservice rivalry
- Interstate Highway System
- Interstellar travel
- Interurban
- Intracoastal Waterway
- Intrapersonal communication
- Invention
- Investigative journalism
- Investiture Controversy
- Investment
- Investor
- Ioan Sturdza
- Ioannina
- Ioannis Kapodistrias
- Ionian School (philosophy)
- Ionization energy
- Iosif Gurko
- Iqaluit
- Iquique
- Iquitos
- Iran hostage crisis
- Iranian dance
- Iranian languages
- Iran–Iraq War
- Iraq
- Irazú Volcano
- Irene of Athens
- Iridaceae
- Iriga
- Iris (plant)
- Iris dilator muscle
- Irish Civil War
- Irish Sea
- Irish Setter
- Irish War of Independence
- Irish literature
- Irish mythology
- Iron Age
- Iron Curtain
- Iron(III) chloride
- Ironing
- Ironworks
- Irrational number
- Irreligion
- Isaac Watts
- Isaiah Horowitz
- Isfahan
- Isla Grande de Tierra del Fuego
- Islamic architecture
- Islamic art
- Islamic calendar
- Islamic studies
- Island
- Island of Mozambique
- Isle of Wight
- Isma'ilism
- Isomer
- Isomorphism
- Isotopes of beryllium
- Isotopes of boron
- Isotopes of carbon
- Isotopes of lithium
- Isparta
- Israeli–Palestinian conflict
- Istanbul Metro
- It's a Wonderful Life
- Italian Peninsula
- Itsukushima
- Ivan Gundulić
- Ivano-Frankivsk Oblast
- Iwate Prefecture
- Ixora
- Izhevsk
- Izu Islands
- Izu Peninsula
- Izvestia
- J.-H. Rosny
- JPMorgan Chase
- Jackfruit
- Jackhammer
- Jackson's chameleon
- Jackson, Mississippi
- Jacksonville, Florida
- Jacob Albright
- Jacob Frank
- Jacob Leisler
- Jacopo Sadoleto
- Jacquard machine
- Jacques Cassini
- Jacques Claude Beugnot
- Jacques Jasmin
- Jacques Leroy de Saint-Arnaud
- Jacques Marie Eugène Godefroy Cavaignac
- Jacques Sirmond
- Jacques-Bénigne Bossuet
- Jakob Ayrer
- Jakob Frohschammer
- Jalali calendar
- Jalandhar
- Jalgaon
- Jamaica
- Jamakhandi
- Jamb
- James Anderson of Hermiston
- James Broun-Ramsay, 1st Marquess of Dalhousie
- James Butler, 1st Duke of Ormond
- James David Forbes
- James FitzJames, 1st Duke of Berwick
- James II of Majorca
- James III of Majorca
- James Moffatt
- James Murray Mason
- James River (Dakotas)
- Jamestown, Virginia
- Jamnagar
- Jamsetji Tata
- Jamshedpur
- Jan Davidsz. de Heem
- Jan Jakob Lodewijk ten Kate
- Jan Mayen
- Jan Steen
- Jane Hading
- Janggu
- Janissary
- Janitor
- Janiuay
- Japan Railways Group
- Japanese economic miracle
- Japanese invasions of Korea (1592–1598)
- Japanese sculpture
- Japanese war crimes
- Japanese yen
- Jasmine
- Jat, Sangli
- Java (programming language)
- Jaws (soundtrack)
- Jayapura
- Jazan Province
- Jean Antoine Ernest Constans
- Jean Astruc
- Jean Baptiste Gay, vicomte de Martignac
- Jean Baptiste Julien d'Omalius d'Halloy
- Jean Baptiste Noël Bouchotte
- Jean Baptiste, baron Franceschi
- Jean Casimir-Perier
- Jean Cavalier
- Jean Domat
- Jean François Sarrazin
- Jean Henri Georges Laguerre
- Jean Henri Latude
- Jean Jouffroy
- Jean Mabillon
- Jean Molinet
- Jean Mounet-Sully
- Jean Philibert Damiron
- Jean Pierre Flourens
- Jean Richepin
- Jean de La Bruyère
- Jean de Marigny
- Jean-Antoine Roucher
- Jean-Baptiste Audebert
- Jean-Baptiste Carrier
- Jean-Baptiste Henri Lacordaire
- Jean-Baptiste Paulin Guérin
- Jean-Baptiste Regnault
- Jean-Baptiste Rousseau
- Jean-Baptiste Santerre
- Jean-Baptiste Tavernier
- Jean-Baptiste Élie de Beaumont
- Jean-Charles de Borda
- Jean-François Marmontel
- Jean-Georges Noverre
- Jean-Jacques-Régis de Cambacérès
- Jean-Marie Pardessus
- Jean-Paul Marat
- Jean-Étienne Guettard
- Jeddah
- Jeju Island
- Jeju Province
- Jelgava
- Jensen's inequality
- Jericho
- Jerry Springer (talk show)
- Jervis Bay Territory
- Jerzmanowa
- Jesuits
- JetBrains
- Jever
- Jewish history
- Jewish music
- Jhang
- Jhelum River
- Jialing River
- Jiangmen
- Jiangnan
- Jiangnan Shipyard
- Jiangxi
- Jiangxi–Fujian Soviet
- Jiaozuo
- Jiayu Pass
- Jieyang
- Jilin
- Jilin City
- Jingdezhen
- Jingkang incident
- Jingzhou
- Joachim I Nestor, Elector of Brandenburg
- Joachim du Bellay
- Job (computing)
- Job Charnock
- Jock (stereotype)
- Johan Christopher Toll
- Johann Albrecht Bengel
- Johann Caspar von Orelli
- Johann Christoph Pepusch
- Johann Elias Schlegel
- Johann Franz Buddeus
- Johann Friedrich Agricola
- Johann Friedrich Herbart
- Johann Gottfried Gruber
- Johann Gottfried Seume
- Johann Gottlob Theaenus Schneider
- Johann Joachim Eschenburg
- Johann Kaspar Lavater
- Johann Matthias Gesner
- Johann Michael Moscherosch
- Johann Patkul
- Johann Philipp Abelin
- Johann Ruchrat von Wesel
- Johann Sebastian Bach
- Johann Uz
- Johannes Gutenberg
- Johannes Meursius
- Johannesburg
- John A. Roebling
- John Angell James
- John B. Floyd
- John Bird Sumner
- John Boyle O'Reilly
- John Brougham
- John Churton Collins
- John Conington
- John Dalton
- John Desborough
- John Downman
- John Francis Murphy
- John Frederick I, Elector of Saxony
- John Freeman-Mitford, 1st Earl of Redesdale
- John Gardner Wilkinson
- John George II, Elector of Saxony
- John George IV, Elector of Saxony
- John Graham, 1st Viscount Dundee
- John Gully
- John Haden Badley
- John I of Aragon
- John II of Aragon
- John IV of Portugal
- John Joseph Enneking
- John Laird (shipbuilder)
- John McCullough (actor)
- John McDouall Stuart
- John Michell
- John Romeyn Brodhead
- John Snell
- John Somers, 1st Baron Somers
- John Strype
- John Tiplady Carrodus
- John VIII Palaiologos
- John Wilson (playwright)
- John Winthrop the Younger
- John Wood Oman
- John Zachary Young
- John of Capistrano
- John of Gaunt
- John, Elector of Saxony
- Johnny B. Goode
- Johnstown Flood
- Joint dislocation
- Joint venture
- Jolo
- Jonathan Livingston Seagull
- Jonathan Peel
- Jorge de Montemor
- Josef Jireček
- Joseon
- Joseph Chamberlain
- Joseph Droz
- Joseph Dudley
- Joseph Hergenröther
- Joseph Justus Scaliger
- Joseph Jérôme Siméon
- Joseph Michel Antoine Servan
- Joseph Roswell Hawley
- Joseph von Führich
- Joseph-Marie, comte Portalis
- Joshua Chamberlain
- Joshua Reed Giddings
- Josip Jelačić
- José Agostinho de Macedo
- José Clavijo y Fajardo
- José Gaspar Rodríguez de Francia
- José Nicolás de Azara
- Joyce Cary
- Juan Eusebio Nieremberg
- Juan Fernández Islands
- Juan Prim
- Jubail
- Jubilee
- Jude the Obscure
- Judge
- Judicial review
- Judicial system of Turkey
- Jujube
- Jujutsu
- Jujuy Province
- Jules Arsène Arnaud Claretie
- Jules Auguste Lemire
- Jules Janin
- Jules Michelet
- Jules Quicherat
- Julia set
- Julian calendar
- Julius Leopold Klein
- July Revolution
- Juneau, Alaska
- Junk (ship)
- Jurisprudence
- Jurong
- Jury
- Just war theory
- Juste Olivier
- Justice
- Justice of the peace
- Justin Winsor
- János Arany
- Jämtland
- Jérôme Bignon
- József Eötvös
- Jötunn
- Jāņi
- Kaaba
- Kababish tribe
- Kabba
- Kabbalah
- Kabuki
- Kachhwaha
- Kaduru
- Kagawa Prefecture
- Kagoshima Prefecture
- Kaithal
- Kakinada
- Kalahari Desert
- Kali Yuga
- Kalinago
- Kalinga War
- Kaliningrad
- Kaliningrad Oblast
- Kalinjar Fort
- Kalmykia
- Kalocsa
- Kalyan-Dombivli
- Kama (river)
- Kamchatka Peninsula
- Kamptee
- Kanagawa Prefecture
- Kananga
- Kanazawa
- Kangwon Province (North Korea)
- Kanji
- Kansas City, Missouri
- Kantō Plain
- Kantō region
- Kaohsiung
- Kappa (folklore)
- Kapurthala
- Kara Sea
- Karachay-Cherkess Autonomous Oblast
- Karauli
- Karbi people
- Karel Kramář
- Karelians
- Karenni people
- Karl Eduard Zachariae von Lingenthal
- Karl Emil Franzos
- Karl Heinrich Lang
- Karl Immermann
- Karl Ludwig Fernow
- Karl Salomo Zachariae von Lingenthal
- Karl Theodor Anton Maria von Dalberg
- Karl Theodor Keim
- Karl Wilhelm Ramler
- Karma Kagyu
- Karwar
- Kasaba
- Katakana
- Kathiawar
- Kaveri
- Kawasaki Heavy Industries
- Kayak
- Kayastha
- Kayin State
- Kazakh Khanate
- Kazakhstan
- Kazan
- Kebbi State
- Kech District
- Kells, County Meath
- Kemble family
- Kennel
- Kensington Palace
- Kent
- Kentucky
- Kenya
- Kepler's laws of planetary motion
- Keratin
- Kermadec Islands
- Kermit the Frog
- Keuper
- Key (music)
- Keyboard technology
- Khadki
- Khakassia
- Khamti people
- Khanate of Khiva
- Khartoum North
- Kheri
- Khitan people
- Khmelnytskyi, Ukraine
- Khomeyni Shahr
- Khonds
- Khulna
- Khyber Pass
- Kick scooter
- Kiel
- Kiel Canal
- Kievan Rus'
- Kikinda
- Kikwit
- Killin
- Kilometre
- Kimberley, Northern Cape
- Kindergarten
- King Kong (1933 film)
- King quail
- Kingdom of Aragon
- Kingdom of Armenia (antiquity)
- Kingdom of Castile
- Kingdom of Cochin
- Kingdom of Croatia-Slavonia
- Kingdom of England
- Kingdom of Hungary
- Kingdom of Italy (Napoleonic)
- Kingdom of León
- Kingdom of Pontus
- Kingdom of Tahiti
- Kingdom of the Netherlands
- Kingsnake
- Kingston upon Thames
- Kinshasa
- Kiritimati
- Kirstenbosch National Botanical Garden
- Kisangani
- Kishangarh
- Kitakyushu
- Kitasato Shibasaburō
- Kittur
- Kitwe
- Knee
- Knight
- Knitting
- Knossos
- Knot
- Ko Samui
- Kodok
- Kohat
- Kola nut
- Kolhapur
- Kollam
- Komati River
- Komatiite
- Komi Republic
- Kompas
- Komsomolets Island
- Konrad Ekhof
- Konrad von Würzburg
- Konstantin Petrovich von Kaufmann
- Konzerthaus Berlin
- Korban
- Korea
- Korea University
- Korean architecture
- Kortrijk
- Kostanay
- Kozan, Adana
- Kremenchuk
- Kremlin Armoury
- Krishna River
- Krishnanagar, Nadia
- Kristiansand
- Krk
- Kropyvnytskyi
- Ksar el-Kebir
- Kuala Lumpur
- Kuantan
- Kudzu
- Kugelblitz (astrophysics)
- Kumamoto
- Kumamoto Prefecture
- Kumba
- Kumta
- Kunming
- Kuomintang
- Kuomintang in Burma
- Kure, Hiroshima
- Kurseong
- Kurume
- Kurunegala
- Kushan Empire
- Kyoto University
- Kyrgyz language
- Kyushu University
- Kyzyl
- Kyzylkum Desert
- Köpenick
- Kōchi Prefecture
- Kōchi, Kōchi
- L'Arlésienne (Bizet)
- L'Aubespine
- LGBT history in the United States
- La Celestina
- La Chaise-Dieu
- La Cucaracha
- La Guaira
- La Marseillaise
- La Plata
- La Rioja Province, Argentina
- La Spezia
- La bohème
- Labour law
- Labrador Retriever
- Labīd
- Lactobacillus
- Lady Caroline Blackwood
- Lady Chatterley's Lover
- Ladybrand
- Lahr
- Lais of Marie de France
- Laiyang
- Lajos Kossuth
- Lake
- Lake Balaton
- Lake Champlain
- Lake District
- Lake Ladoga
- Lake Mead
- Lake Nemi
- Lake Peipus
- Lake Victoria
- Lake ecosystem
- Lakhimpur district
- Lakhmids
- Lalitpur district, India
- Lalitpur, Nepal
- Lambeth Conference
- Lampung
- Lan Na
- Landform
- Landing gear
- Landsberg, Saxony-Anhalt
- Landscape architecture
- Landscape design
- Landsturm
- Lane
- Langkawi
- Language acquisition
- Language death
- Language development
- Language education
- Language family
- Language game
- Language interpretation
- Language isolate
- Laplace's equation
- Laptop
- Larceny
- Larkana
- Larnaca
- Las Piñas
- Las Vegas
- Lascăr Catargiu
- Laser
- Laser diode
- Laser printing
- Laser rangefinder
- LaserDisc
- Last Judgment
- Late Bronze Age collapse
- Late Show with David Letterman
- Late modern period
- Lath and plaster
- Lathe
- Latin
- Latin America
- Latin American culture
- Latin Empire
- Latin alphabet
- Latin dance
- Lattice (group)
- Latvia
- Latvian language
- Launch pad
- Launch vehicle
- Laundry
- Laundry room
- Laureate
- Laurent-Guillaume de Koninck
- Law & Order
- Law clerk
- Law enforcement agency
- Law of Afghanistan
- Law of Austria
- Law of Iraq
- Law of Russia
- Law of Switzerland
- Law of Ukraine
- Law of large numbers
- Law of the Netherlands
- Law of the People's Republic of China
- Law school
- Law society
- Lawn mower
- Lawrence Humphrey
- Lawrence of Arabia (film)
- Lay judge
- Layering
- Le Chatelier's principle
- Le Corbusier
- Le Havre
- Le Tréport
- Lead–acid battery
- Leap year
- Learning disability
- Leased line
- Leasehold estate
- Leather
- Lebanese Civil War
- Lebanon
- Leek
- Legal aid
- Legal case
- Legal education
- Legal fiction
- Legal liability
- Legal maxim
- Legal tender
- Legal writing
- Leicester
- Leicester Longwool
- Leicestershire
- Leipzig University
- Lent
- Lentil
- Lenz's law
- Leonard Volk
- Leonora Dori
- Leopold Gmelin
- Leopold I of Belgium
- Leopold I, Prince of Anhalt-Dessau
- Leopold II, Grand Duke of Tuscany
- Leopold II, Holy Roman Emperor
- Leopoldo Cicognara
- Leprechaun
- Leptin
- Leptines
- Les Fleurs du mal
- Les Guignols
- Les Liaisons dangereuses
- Les Mignons
- Les Misérables (musical)
- Lesotho
- Let's Make a Deal
- Letter (alphabet)
- Letter-quality printer
- Levallois-Perret
- Levee
- Lever tumbler lock
- Levin Schücking
- Lewis and Clark Expedition
- Lexicographic order
- Lexicon Technicum
- Lexis (linguistics)
- Leyte
- Lezgins
- León, Guanajuato
- León, Nicaragua
- Lia Félix
- Liao River
- Liaocheng
- Liaodong Peninsula
- Liaoning
- Liaquat–Nehru Pact
- Liberal Democratic Party (Japan)
- Liberal Party of Australia
- Liberal arts college
- Liberal democracy
- Libmanan
- Lidar
- Liechtenstein
- Lieutenant general
- Life (magazine)
- Life extension
- Life insurance
- Ligand
- Ligand field theory
- Ligao
- Light fixture
- Light pollution
- Light-emitting diode
- Lightheadedness
- Lighting
- Ligia
- Liguria
- Ligurian Sea
- Lille
- Lime sulfur
- Limes Germanicus
- Liminality
- Limit of a sequence
- Lindbergh kidnapping
- Line (software)
- Line of purples
- Line printer
- Line-replaceable unit
- Linear equation
- Linear particle accelerator
- Lineation (geology)
- Linguistics
- Link (unit)
- Linköping
- Linyphiidae
- Linz
- Lipid profile
- Lipoprotein
- Liquefied natural gas
- Liquefied petroleum gas
- Liquid
- Liquid fuel
- Liquid-crystal display
- Liquid–liquid extraction
- Liquor
- List of counts and dukes of Montpensier
- List of desktop publishing software
- List of feeding behaviours
- List of literary movements
- List of naval weapon systems
- Literary criticism
- Literary genre
- Literary language
- Literary theory
- Lithostratigraphy
- Lithuanian language
- Litopterna
- Little Women
- Liturgical year
- Livestock
- Living room
- Livorno
- Liège
- Load balancing (computing)
- Load-following power plant
- Local anesthetic
- Lochgelly
- Lock (water navigation)
- Lock and key
- Lockharts of Lee
- Lockheed C-130 Hercules
- Lockheed L-1011 TriStar
- Locmariaquer
- Locomotive
- Locust tree
- Loess
- Loft
- Lohengrin (opera)
- Loire-Atlantique
- Lokrum
- Lola Montez
- Lombards
- Lombardy
- London School of Economics
- London Underground
- London dispersion force
- Long Beach, California
- Long Island
- Long Island Sound
- Long March
- Long division
- Long ton
- Long-tailed duck
- Longdé
- Longman
- Loni, Ghaziabad
- Look Back in Anger
- Looking Back in Anger
- Lope de Vega
- Lophius
- Loralai
- Lord
- Lord Edward FitzGerald
- Lord George Gordon
- Lord Polwarth
- Lorentz–Heaviside units
- Lorenzo Campeggio
- Lorraine
- Lose Yourself
- Lothair I
- Lothair II
- Lothair of France
- Lothar Bucher
- Loudspeaker
- Louis Antoine Fauvelet de Bourrienne
- Louis Armstrong
- Louis Blanc
- Louis Desaix
- Louis Gerhard De Geer
- Louis Gustave Ricard
- Louis II of Italy
- Louis Jean Marie de Bourbon, Duke of Penthièvre
- Louis Jean-Marie Daubenton
- Louis Prosper Gachard
- Louis VII of France
- Louis XII
- Louis XIII
- Louis XIV
- Louis XVI
- Louis de Buade de Frontenac
- Louis, Grand Condé
- Louis-François Bertin
- Louis-Jules Trochu
- Louis-Nicolas Davout
- Louise Bénédicte de Bourbon
- Louisville, Kentucky
- Lounge music
- Louver
- Love wave
- Low German
- Low church
- Low-level programming language
- Low-pass filter
- Lower Paleolithic
- Luanda
- Lublin Voivodeship
- Lubricant
- Lubusz Voivodeship
- Lucena
- Lucha libre
- Lucilio Vanini
- Lucus Feroniae
- Lucy (Australopithecus)
- Ludovico di Varthema
- Ludwig Hassenpflug
- Ludwig Michael Schwanthaler
- Ludwig Richter
- Ludwig Yorck von Wartenburg
- Luge
- Luhansk People's Republic
- Luis Miguel Dominguín
- Luis de Góngora
- Luis de Requesens y Zúñiga
- Lullaby
- Luna 9
- Lungfish
- Lunisolar calendar
- Lupemban culture
- Lustrum
- Lute
- Luther Bible
- Luther Martin
- Luton
- Luxembourgish
- Luz-Saint-Sauveur
- Lviv
- Lyceum
- Lycopodium
- Lydenburg
- Lydia
- Lye
- Lyman J. Gage
- Lymphatic vessel
- Lyonesse
- Lyre
- Lysergic acid diethylamide
- Lysistrata
- Lê dynasty
- Lübeck
- Lüneburg Heath
- Lüttringhausen
- Lý dynasty
- M'banza-Kongo
- M16 rifle
- M1911 pistol
- MIRC
- MOSFET
- MP3
- MPEG-4
- MS-DOS
- MSX
- MTR
- MTV
- MacDraw
- Macabebe
- Macarena
- Macaronesia
- Macbeth
- Mace (bludgeon)
- Macerata
- Macgregor Laird
- Machairodus
- Machine
- Machine gun
- Machine tool
- Machining
- Machu Picchu
- Mackinac Bridge
- Macro (computer science)
- Macronucleus
- Macrophage
- Macroscopic scale
- Madagascar hissing cockroach
- Madame de La Fayette
- Madhhab
- Madrid
- Maebashi
- Magic realism
- Magistrates' court (England and Wales)
- Maglemosian culture
- Magnesium citrate
- Magnesium sulfate
- Magnetic monopole
- Magnetic quantum number
- Magnetic storage
- Magnetic tape
- Magnetic-tape data storage
- Magnifying glass
- Magnus Gabriel De la Gardie
- Mahadev Govind Ranade
- Mahajanapadas
- Mahar
- Mahi-mahi
- Mahoba
- Mahón
- Maihar
- Main battle tank
- Maine
- Mainshock
- Major general
- Major scale
- Makarska
- Makassar
- Makassar people
- Makati
- Makgadikgadi Pan
- Malabon
- Malakand Pass
- Malay language
- Malayan campaign
- Malayan tapir
- Maldives
- Maldivian language
- Male reproductive system
- Malegaon
- Mali Empire
- Malkuth
- Malleus Maleficarum
- Mallorca
- Malta
- Maltese language
- Malthusianism
- Maluku (province)
- Malé
- Mambo (dance)
- Mamertines
- Mamluk
- Mamund
- Man
- Manado
- Management accounting
- Managua
- Manaus
- Manawatū-Whanganui
- Manbhum
- Manciple
- Mandaluyong
- Mandarin Chinese
- Mandate of Heaven
- Mandible
- Mandla
- Mandrake the Magician
- Mandsaur
- Manfred
- Mango
- Mangrove
- Manhole
- Manhua
- Manhwa
- Manitou
- Mankato, Minnesota
- Manor house
- Manson Family
- Manufacturing
- Manx cat
- Many-worlds interpretation
- Maoming
- Map
- Maputo
- Maracaibo
- Maracay
- Maranhão
- Marathi language
- Marcel Prévost
- March (territory)
- March 1st Movement
- March equinox
- Marcha Real
- Marching band
- Marco Antonio de Dominis
- Marco Minghetti
- Marcus Manilius
- Marengo (horse)
- Margaret of Parma
- Mari El
- Maria Polydouri
- Maria Stella
- Maria Theresa of Spain
- Mariana Alcoforado
- Mariano Rampolla
- Mariazell
- Marie Anne de La Trémoille, princesse des Ursins
- Marienberg
- Marikina
- Marimba
- Marin le Roy de Gomberville
- Marina
- Marinduque
- Marine chemistry
- Marinid Sultanate
- Maritime Silk Road
- Maritime history of Europe
- Maritime patrol aircraft
- Mariupol
- Marius Aventicensis
- Marià Fortuny
- Mark Antony
- Mark Lemon
- Mark the Evangelist
- Market penetration
- Marlborough District
- Marmande
- Marquess of Lothian
- Marquise de Créquy
- Marriage
- Married... with Children
- Marshall Islands
- Marsilio Ficino
- Marten
- Martial arts
- Martin (name)
- Martin Chemnitz
- Martin Parker
- Martín Fierro
- Marxism
- Mary Tudor, Queen of France
- Maryland
- Marzipan
- Mascarene Islands
- Masculine and feminine endings
- Maseru
- Masjid al-Haram
- Mass flow (life sciences)
- Mass fraction (chemistry)
- Mass transfer
- Massachusetts Bay Colony
- Massachusetts Bay Transportation Authority
- Massachusetts Institute of Technology
- Massless particle
- Master (judiciary)
- Master Betty
- Master of Business Administration
- Master's degree
- Mat
- Matachines
- Match Game
- Mate (drink)
- Mathematical notation
- Mathematician
- Mather Byles
- Mathieu Molé
- Matriarchy
- Matsuyama
- Matsyendranatha
- Matsés
- Maui
- Maule Region
- Mauranipur
- Maurice Tourneux
- Mauritania
- Maurya Empire
- Mausoleum
- Mawlawi (Islamic title)
- Max Alvary
- Maximilian I, Elector of Bavaria
- Maximilian II of Bavaria
- Maximilian von Montgelas
- Maximilien de Béthune, Duke of Sully
- Maximum a posteriori estimation
- May Day
- Maya peoples
- Maymana
- Mayurbhanj district
- Mazarrón
- Mazda
- Mbombela
- Meadow
- Meat
- Mechanic
- Mechanical wave
- Mechanism (engineering)
- Medellín
- Media psychology
- Mediation
- Medical device
- Medical drama
- Medical imaging
- Medical jurisprudence
- Medical laboratory
- Medieval Latin
- Medieval architecture
- Medieval literature
- Medieval music
- Medieval technology
- Mediterranean Sea
- Mediterranean climate
- Mediterranean forests, woodlands, and scrub
- Medium bomber
- Medulla oblongata
- Meet the Press
- Megalopolis
- Meghalaya
- Meghna River
- Mein Kampf
- Meknes
- Melanin
- Melbourne
- Melodrama
- Membrane potential
- Meme
- Memorandum of association
- Memory card
- Memphis riots of 1866
- Memphis, Tennessee
- Menai Bridge
- Mendelian inheritance
- Mendoza Province
- Menelik II
- Menhaden
- Mennonites
- Menorca
- Mensa International
- Menstruation
- Mentalism
- Mentor of Rhodes
- Mercedes-Benz Group
- Mercosur
- Meridian (geography)
- Merina Kingdom
- Merseburg
- Mersin
- Merthyr Tydfil
- Merzifon
- Mesh
- Meskwaki
- Mesopotamia in Classical literature
- Messina
- Mestizo
- Metal fabrication
- Metallic bonding
- Metalworking
- Metamorphosis
- Metaphysics
- Metaphysics (Aristotle)
- Metascience
- Metastability
- Metasyntax
- Metathesis (linguistics)
- Meterstick
- Methodism
- Metre (music)
- Metric system
- Metro-Goldwyn-Mayer
- Metropolis
- Metropolitan area
- Mexican Mafia
- Mexican Plateau
- Mexican art
- Miantonomoh
- Mianwali
- Miao people
- Michael Denis
- Michael Jan de Goeje
- Michael Thomas Sadler
- Michel Chamillart
- Michel Le Tellier
- Mickey Mouse
- Microclimate
- Microdialysis
- Microeconomics
- Micrografx
- Microprocessor
- Micropropagation
- Microreactor
- Microsecond
- Microsoft BizTalk Server
- Microsoft Pay
- Microstate (statistical mechanics)
- Middle name
- Midnight sun
- Midway Atoll
- Midwestern United States
- Mie Prefecture
- Mieczysław Halka-Ledóchowski
- Migrant worker
- Mihály Csokonai
- Mihály Vörösmarty
- Mikhail Illarionovich Vorontsov
- Miklós Zrínyi
- Mil Mi-8
- Milan Cathedral
- Mile
- Military
- Military colours, standards and guidons
- Military exercise
- Military helicopter
- Military rank
- Military strategy
- Military transport aircraft
- Military volunteer
- Militia
- Milk
- Millennialism
- Miller index
- Millet
- Milliradian
- Millisecond
- Milos
- Milton Obote
- Mimaropa
- Mime artist
- Minas Gerais
- Mind
- Mindanao
- Mindoro
- Mineral jig
- Mineral processing
- Mineral wool
- Mingora
- Minimal music
- Minimalism
- Mining
- Minivan
- Minority group
- Minotaur
- Minsk
- Minute and second of arc
- Minya Governorate
- Mirage
- Miseno
- Misiones Province
- Missile
- Missile guidance
- Missionary
- Missouri
- Mister Rogers' Neighborhood
- Mito Kōmon
- Mito, Ibaraki
- Miyazaki (city)
- Mljet
- Moa-nalo
- Mobile device
- Mode (music)
- Model of computation
- Modelling clay
- Modem
- Modena
- Modern Standard Arabic
- Modesty
- Modular programming
- Modularity theorem
- Modulation
- Mohism
- Mojibake
- Moldavite
- Moldova
- Mole salamander
- Molecular evolution
- Molecular genetics
- Molecular graphics
- Molecular orbital theory
- Molecule
- Moll Flanders
- Molten salt reactor
- Mombasa
- Mon people
- Monarch butterfly
- Monarchianism
- Monarchy
- Monday
- Monday Night Football
- Money market
- Monforte de Lemos
- Mongol conquest of China
- Mongol invasions of India
- Mongol invasions of Korea
- Mongoose
- Mongrel
- Monism
- Monitor filter
- Monk
- Monoceros
- Monopoly
- Monosaccharide
- Monosodium citrate
- Monster
- Monster truck
- Mont Blanc
- Montana
- Monte Carlo
- Monte Massico
- Montego Bay
- Monterrey
- Montesquieu
- Montluçon
- Montpellier
- Montreal
- Montreal Metro
- Monument
- Monywa
- Monza
- Mood (psychology)
- Moon landing
- Moonlight Mask
- Moonrat
- Moons of Pluto
- Moorish idol
- Moped
- Moradabad
- Moraine
- Moral relativism
- Morar
- Moratuwa
- Moravian Church
- Moravian-Silesian Region
- Morbi
- Mordovia
- Morelia
- Morelos
- Morioka
- Morisco
- Mormonism
- Moroccan Arabic
- Morogoro
- Morpheme
- Morphine
- Morphophonology
- Mortgage loan
- Morus (plant)
- Morvan
- Morón de la Frontera
- Moschops
- Moscow Basin
- Moscow State University
- Moses Amyraut
- Moshe Chaim Luzzatto
- Moshi, Tanzania
- Moskva (river)
- Mosque
- Mosquito
- Moss agate
- Mossad
- Mosul
- Mother's Day
- Motion sickness
- Motorboat
- Mount Fuji
- Mount Hotakadake
- Mount Hua
- Mount Jiuhua
- Mount Mitchell
- Mount Parnassus
- Mount Pelée
- Mount Unzen
- Mountain bike
- Mountain goat
- Mountaineering
- Mozambique
- Mozarabic Rite
- Moçâmedes
- Mrs Dalloway
- Mud
- Mudhol
- Muezzin
- Mughal architecture
- Mughal painting
- Mujahideen
- Mukden Incident
- Mula sa Puso
- Mulch
- Mule
- Multi-booting
- Multi-factor authentication
- Multihull
- Multilayer switch
- Multimedia
- Multimeter
- Multiple cropping
- Multiple rocket launcher
- Multiple sclerosis
- Multiple-barrel firearm
- Multiplication
- Multiplication sign
- Multiprocessing
- Multiracial people
- Multirole combat aircraft
- Multithreading (computer architecture)
- Multivariable calculus
- Multiverse
- Mummy
- Munda people
- Munich
- Munich U-Bahn
- Muntinlupa
- Muon
- Murphysboro, Illinois
- Muscat
- Muscovy duck
- Muscular system
- Museo Rufino Tamayo, Mexico City
- Museo de Arte Moderno
- Museo del Prado
- Museum of Modern Art
- Music
- Music box
- Music festival
- Music of Australia
- Music of Austria
- Music of China
- Music of Cuba
- Music of Ethiopia
- Music of India
- Music of Latin America
- Music of Mexico
- Music of Mozambique
- Music of The Lord of the Rings film series
- Music of the Democratic Republic of the Congo
- Music of the Netherlands
- Music of the United States
- Music radio
- Music sequencer
- Music theory
- Music venue
- Musical composition
- Musical ensemble
- Musical form
- Musical improvisation
- Musical tuning
- Musician
- Musikverein
- Muslim Brotherhood
- Muslim conquest of Persia
- Muslim conquest of the Maghreb
- Muslim world
- Mussoorie
- Mustard oil
- Mustelidae
- Mutual assured destruction
- Muzaffarnagar
- Muʿtazila
- My Generation
- Myanmar
- Mycelium
- Myitkyina
- Mykolaiv
- Myna
- Myoclonus
- Mystery fiction
- MythBusters
- Mythologies of the indigenous peoples of the Americas
- Mythology (book)
- Mémoires d'Outre-Tombe
- Mérida, Yucatán
- Mühlhausen
- Māui (mythology)
- NAACP
- NASA
- NATO
- NME
- NOR gate
- NTSC
- NYPD Blue
- Nabha
- Nabua
- Nadia
- Nagano Prefecture
- Nagaur
- Nagina
- Naginata
- Nagoya
- Naha
- Nail (anatomy)
- Nail gun
- Nainital
- Nairobi
- Najd
- Najran
- Najran Province
- Nakhon Ratchasima
- Nakuru
- Names of the days of the week
- Namma Metro
- Namur
- Nana Fadnavis
- Nanban trade
- Nanchang
- Nanded
- Nandi Hills, India
- Nanga Parbat
- Nanjing
- Nanjing Massacre
- Nanjing University
- Nankeen
- Nanning
- Naphtha
- Naples
- Napoleon Crossing the Alps
- Napoleon II
- Napoleonic Code
- Napoleonic Wars
- Napoléon (1927 film)
- Narcisse-Achille de Salvandy
- Narmada River
- Narrative structure
- Nassau, Bahamas
- Nation state
- National Autonomous University of Mexico
- National Library of Sweden
- National Museum (Prague)
- National Museum of Anthropology (Mexico)
- National Museum of China
- National Museum of Korea
- National People's Congress
- National Review
- National Science Foundation
- National Technical Museum (Prague)
- National flag
- Nationality law
- Native American religion
- Native element mineral
- Natural History Museum, London
- Natural gum
- Natural history of Africa
- Natural product
- Natural rubber
- Natural satellite
- Natural science
- Nature versus nurture
- Naturphilosophie
- Naumburg
- Nauruan language
- Nautch
- Nautical cable
- Navajo Nation
- Navarch
- Navi Mumbai
- Navigation Acts
- Navotas
- Navsari district
- Navy
- Nayagarh
- Nazi Party
- Near East
- Needs analysis
- Nefta, Tunisia
- Negative and positive rights
- Negative impedance converter
- Nelumbo nucifera
- Neo-romanticism
- Neolithic
- Neolithic architecture
- Neon lighting
- Nepalese Civil War
- Neper
- Nephelometer
- Neretva
- Nerve agent
- Net (device)
- NetDynamics Application Server
- Netscape Navigator
- Network congestion
- Network packet
- Netzach
- Neuquén
- Neurology
- Neuron
- Neuropathology
- Neuroscience
- Neustria
- Neutron radiation
- Nevada
- Nevada Test Site
- Nevers
- New Abbey
- New Britain
- New Caledonia
- New Deal
- New Guinea Highlands
- New Haven, Connecticut
- New Horizons
- New Territories
- New Testament
- New Year's Day
- New York Bay
- New moon
- Newcomen atmospheric engine
- Newline
- News Corporation
- News media
- Newspaper
- Newsweek
- Newton-le-Willows
- Next friend
- Neyriz
- Nguyễn dynasty
- Ngöndro
- Niagara Peninsula
- Niall Garve O'Donnell
- Nicaragua
- Nice
- Nicene Creed
- Nicholas French
- Nicholas Trivet
- Nicholas of Basel
- Nicholas of Lyra
- Nickelodeon
- Nickname
- Nicolas Anselme Baptiste
- Nicolas Changarnier
- Nicolas Desmarest
- Nicolas Desmarets
- Nicolas Eugène Géruzez
- Nicolas de Harlay, seigneur de Sancy
- Nicolas de Largillière
- Nicosia
- Nicotine
- Niger
- Nigeria
- Night heron
- Night school
- Night sky
- Nightclub
- Niigata Prefecture
- Nijmegen
- Nikephoros I
- Nikephoros I of Constantinople
- Nile perch
- Nimar
- Nineteen Eighty-Four
- Nineveh
- Ningbo
- Nishapur
- Nitroglycerin
- Nizhny Novgorod
- Niğde
- Nobility
- Noble gas compound
- Nocturne
- Nocturne in Black and Gold – The Falling Rocket
- Nominalization
- Nominoe
- Nomoi Islands
- Non-Aligned Movement
- Non-commissioned officer
- Non-inertial reference frame
- Non-lethal weapon
- Nondeterministic Turing machine
- Nonfood crop
- Nonprofit organization
- Nonsteroidal anti-inflammatory drug
- Nonthaburi
- Nontrinitarianism
- Nord-Pas-de-Calais
- Norderney
- Nordic countries
- Norfolk
- Norfolk Island
- Noricum
- Norm (philosophy)
- Norma Arm
- Normal force
- Norman conquest of southern Italy
- Normandy
- Normans
- Normative ethics
- Norrland
- North
- North American P-51 Mustang
- North Carolina State University
- North China
- North Dakota
- North Germanic languages
- North Holland
- North Jeolla Province
- North Khorasan province
- North Macedonia
- North Ossetia–Alania
- Northeast Asia
- Northeast Caucasian languages
- Northern Alliance
- Northern Dvina
- Northern Europe
- Northern Sámi
- Northwest China
- Northwest Territories
- Norway
- Norwegian language
- Norwest Corporation
- Norwich
- Notice
- Nottinghamshire
- Novanet, Cloud Communications Company
- Novara
- Novel
- Novi Sad
- Noël-Nicolas Coypel
- Nubar Pasha
- Nuclear binding energy
- Nuclear fuel
- Nuclear meltdown
- Nuclear proliferation
- Nuclear reactor
- Nuclear technology
- Nuclear transfer
- Nuclear weapon
- Nuclear weapon design
- Nucleosynthesis
- Nucleotide
- Nuevo León
- Nullarbor Plain
- Numantia
- Numerical relay
- Nunavut
- Nunchaku
- Nur-Sultan
- Nuremberg
- Nut (hardware)
- Nuuk
- Nylon
- Nymph
- Nymphaeaceae
- O'Higgins Region
- OECD
- OR gate
- OSI model
- Oahu
- Oak
- Oasis
- Oat
- Oath of office
- Object-oriented programming
- Objective-C
- Observational study
- Ocean
- Ocean current
- Ochiltree
- Octane rating
- Octave (poetry)
- Octave Pirmez
- October Revolution
- Odd-toed ungulate
- Odes of Solomon
- Oedipus Rex
- Off-road vehicle
- Offender profiling
- Office
- Officer (armed forces)
- Official script
- Ogun State
- Ohio State University
- Ohrdruf
- Oil
- Oil drop experiment
- Oil lamp
- Oil painting
- Ojibwe
- Oka (river)
- Okapi Wildlife Reserve
- Okayama
- Okhtyrka
- Okinawa Prefecture
- Oklahoma City
- Oklahoma!
- Oktoberfest
- Old East Slavic
- Old English Sheepdog
- Old Swiss Confederacy
- Old World
- Oliver Otis Howard
- Olivier V de Clisson
- Olivier le Daim
- Olmecs
- Olomouc
- Olongapo
- Olympic Peninsula
- Ombudsman
- On the Waterfront
- Onager
- Once Upon a Time in the West
- Oncology
- One country, two systems
- Oni
- Online shopping
- Ontology
- Opacity (optics)
- Opal
- Opata
- Open set
- Opening statement
- Operating system
- Operating theater
- Operation Bagration
- Operation Market Garden
- Operation Torch
- Operation Weserübung
- Opium
- Opportunity (rover)
- Optical fiber
- Optical filter
- Optical illusion
- Opticks
- Optometry
- Ora et labora
- Oral exam
- Oral, Kazakhstan
- Orange Free State
- Orbit
- Orbital spaceflight
- Orchestra
- Orchestration
- Order (biology)
- Order of Saint Augustine
- Ordinal number
- Ordinary differential equation
- Ore
- Oregano
- Oregon Trail
- Orenburg
- Oresteia
- Orestes Brownson
- Organic acid
- Organic chemistry
- Organic synthesis
- Organisation of African Unity
- Organisation of Islamic Cooperation
- Organization for Security and Co-operation in Europe
- Organization of American States
- Organization of the Black Sea Economic Cooperation
- Organizational communication
- Organized crime
- Orient
- Orient Express
- Origin myth
- Origin of language
- Origins of the American Civil War
- Orlando Furioso
- Orléans
- Ornament (music)
- Oromo language
- Oromo migrations
- Orthodox Judaism
- Orthography
- Ortona
- Oruro
- Oryza glaberrima
- Oscar I of Sweden
- Oscillation
- Osh
- Oshima Peninsula
- Osijek
- Osmoregulation
- Osogbo
- Ostankino Tower
- Ostia Antica
- Ostrava
- Osun State
- Oswald Myconius
- Otago
- Otello
- Otorhinolaryngology
- Ottokar II of Bohemia
- Ottoman wars in Europe
- Ouargla
- Oudenaarde
- Ours-Pierre-Armand Petit-Dufrénoy
- Out (magazine)
- Output (economics)
- Outsider art
- Overhead power line
- Overijssel
- Owen Jones (architect)
- Oxenstierna
- Oxfordshire
- Oxide
- Oyster
- Ozarks
- Ozone
- Ozone depletion
- Ozone layer
- P. T. Barnum
- PA Media
- PAL
- PATH (variable)
- PBS
- PCI Express
- PH indicator
- Pacific Northwest
- Pacific bluefin tuna
- Pacific saury
- Padding
- Paddle steamer
- Padua
- Page (computer memory)
- Page orientation
- Page printer
- Pahlavi dynasty
- Paint
- Pair production
- Pakokku
- Palace
- Palaeontology (journal)
- Palanpur
- Palau
- Palayamkottai
- Palazzo dei Normanni
- Paleobotany
- Paleothermometer
- Palestrina
- Palette (computing)
- Palm Springs, California
- Palm Sunday
- Palma de Mallorca
- Pampas
- Pamphilus of Alexandria
- Pamukkale
- Pan flute
- Pan-American Conference
- Pan-Slavism
- Pan-nationalism
- Panaji
- Panama
- Panama Canal
- Panama City
- Pandharpur
- Panentheism
- Paneth cell
- Panic
- Panic of 1873
- Panjdeh incident
- Panjin
- Panthera hybrid
- Pantograph
- Pantón
- Paolo Sarpi
- Paolo Savi
- Papaver somniferum
- Paper cup
- Paracel Islands
- Parachute
- Paradox
- Paraguay
- Paraguay River
- Parakeet
- Paraldehyde
- Paralegal
- Parallax
- Parallel (geometry)
- Parallel ATA
- Parallel communication
- Paramedic
- Paranoid fiction
- Parasympathetic nervous system
- Parañaque
- Parchment
- Pardes (exegesis)
- Parenting
- Paris Bordone
- Paris Street; Rainy Day
- Parish (administrative division)
- Parity bit
- Park and ride
- Parlement
- Parma
- Parmesan
- Parnaíba
- Parsifal
- Parsis
- Parsley
- Partonopeus de Blois
- Pasay
- Pascal's triangle
- Pasig
- Pasodoble
- Pasquale Stanislao Mancini
- Passacaglia and Fugue in C minor, BWV 582
- Passenger
- Passenger train
- Passes of the Silvretta and Rätikon Ranges
- Passiflora edulis
- Passions
- Pastel
- Pastoral farming
- Pasture
- Patagonia
- Patch (computing)
- Patent
- Pathet Lao
- Patiala
- Patras
- Patrick Duigenan
- Patrol
- Paul Barras
- Paul Delaroche
- Paul Deschanel
- Paul Johann Anselm Ritter von Feuerbach
- Paul Lacroix
- Paul Lindau
- Paul Louis Courier
- Paul Morphy
- Paul Schützenberger
- Paul-Armand Challemel-Lacour
- Pavel Jozef Šafárik
- Pavilion
- Pavise
- Paxo
- Pea
- Peace Corps
- Peace of Augsburg
- Peach
- Peanut
- Peanuts
- Pear
- Pearl
- Pearl River
- Pebble
- Peculiar People
- Pedestal
- Pedestrian crossing
- Pedestrian zone
- Pedro Correia Garção
- Pedro González de Mendoza
- Pedro Pablo Abarca de Bolea, 10th Count of Aranda
- Pedro de Ribadeneira
- Peg Woffington
- Pehr Henrik Ling
- Pekanbaru
- Peking University
- Pekingese
- Pelatiah Webster
- Pele (deity)
- Pelletizing
- Pelopidas
- Pelycosaur
- Penal labour
- Penang Island
- Penanggalan
- Pencil
- Peniscola
- Penmarch
- Penn Yan, New York
- Pension
- Pension fund
- Penstemon
- Pentaprism
- Pentecost
- People (magazine)
- People Are Funny
- People's Daily
- Peppa Pig
- Pepper spray
- Peramelemorphia
- Perch
- Perciformes
- Pereira, Colombia
- Perfection
- Performance poetry
- Performing arts
- Periodontal disease
- Peripheral Component Interconnect
- Peripheral nervous system
- Perm, Russia
- Permaculture
- Perpetual motion
- Perpetual war
- Perpetuum mobile
- Persian alphabet
- Persian mythology
- Persimmon
- Personal name
- Personal watercraft
- Personality psychology
- Personality test
- Perspective (graphical)
- Perspiration
- Perturbation theory
- Peter Cornelius
- Peter Gunning
- Peter Jan Beckx
- Peter King, 1st Baron King
- Peter Martin Duncan
- Peter le Page Renouf
- Peterhof Palace
- Petro Mohyla
- Petroglyph
- Petroleum
- Petropavl
- Petrus Ramus
- Petticoat Junction
- Petty officer
- Phalanger
- Phalangiotarbi
- Phalanx
- Phaltan
- Pharmacist
- Pharmacology
- Pharmacotherapy
- Pharmacy
- Pharynx
- Phaseolus vulgaris
- Pheasant
- Phidias
- Philip Howard Colomb
- Philip I, Landgrave of Hesse
- Philip IV of Spain
- Philip Schaff
- Philip Yorke, 1st Earl of Hardwicke
- Philipp van Limborch
- Philipp von Hutten
- Philippe Quinault
- Philippine Revolution
- Philippine Sea Plate
- Phillips curve
- Philosopher
- Philosophical Transactions of the Royal Society
- Philosophiæ Naturalis Principia Mathematica
- Philosophy
- Philosophy of history
- Philosophy of language
- Philosophy of mathematics
- Phishing
- Phlegon of Tralles
- Phoneme
- Phonemic orthography
- Phonograph record
- Phonological change
- Phonological history of English
- Phonology
- Phosphate
- Photographic film
- Photographic plate
- Photojournalism
- Photometer
- Photometry (astronomy)
- Photometry (optics)
- Photonics
- Phuket province
- Phylum
- Physical geodesy
- Physical property
- Physical quantity
- Physical therapy
- Physiology
- Phytoremediation
- Phú Quốc
- Pi bond
- Piano Concerto (Grieg)
- Piano Concerto No. 1 (Tchaikovsky)
- Piano Concerto No. 2 (Rachmaninoff)
- Piauí
- Picardy
- Pico de Orizaba
- Pictogram
- Pictures at an Exhibition
- Pidgin
- Piecewise
- Pier (architecture)
- Piero Soderini
- Piero del Pollaiuolo
- Pierre Bosquet
- Pierre Daniel Huet
- Pierre Dupont
- Pierre François le Courayer
- Pierre Gringore
- Pierre Louis Maupertuis
- Pierre Prieur
- Pierre Prévost (physicist)
- Pierre d'Aubusson
- Pierre de Bocosel de Chastelard
- Pierre de Marca
- Pieter Melvill van Carnbee (geographer)
- Pietro Colletta
- Pigeon racing
- Pika
- Pike (weapon)
- Pili (TV series)
- Pimpri-Chinchwad
- Pinar del Río
- Pind Dadan Khan
- Pingdingshan
- Pinguicula
- Pinocchio
- Pinturicchio
- Pioneer 11
- Pipe (fluid conveyance)
- Pipe and tabor
- Piperazine
- Piperno
- Piran
- Pishin District
- Pisidia
- Piston
- Pistonless rotary engine
- Pit viper
- Pitaya
- Pitch (card game)
- Pitch (music)
- Pith
- Pittsburgh
- Pituitary gland
- Piura
- Pixiu
- Plain text
- Plaintext
- Plaintiff
- Planarian
- Planetary habitability
- Planetesimal
- Plant
- Plant breeding
- Plant nursery
- Plant propagation
- Plant reproduction
- Plant reproductive morphology
- Plant stem
- Plantations of Ireland
- Plasmatron
- Plaster
- Plasterwork
- Plastic mulch
- Plastic pollution
- Plastics engineering
- Plate tectonics
- Plateau
- Plateau State
- Plato
- Platonic realism
- Platonic solid
- Platycodon
- Playwright
- Plea bargain
- Pleistocene
- Pliers
- Pliocene
- Plotter
- Plough
- Plug-in (computing)
- Plumb bob
- Plzeň
- Plzeň Region
- Pocket watch
- Podlaskie Voivodeship
- Podocarpus
- Podolia
- Poecilotheria metallica
- Poincaré conjecture
- Point (geometry)
- Point source
- Pointe-à-Pitre
- Pointer (computer programming)
- Poisoning
- Poisson distribution
- Pokémon (TV series)
- Polarography
- Polder
- Pole vault
- Police officer
- Political campaign
- Politics
- Politics of Canada
- Politics of China
- Politics of Denmark
- Politics of Greece
- Politics of India
- Politics of Mexico
- Politics of Russia
- Politics of South Korea
- Politics of the Republic of China
- Politics of the United Kingdom
- Polka
- Poll tax
- Pollen
- Pollination management
- Pollution
- Polyatomic ion
- Polyethylene terephthalate
- Polygon
- Polygonal number
- Polyhedron
- Polymer backbone
- Polymer physics
- Polynesian culture
- Polynomial ring
- Polysaccharide
- Polytetrafluoroethylene
- Polyvinyl chloride
- Pomegranate
- Pommer
- Pondicherry
- Poniatowski
- Pont Alexandre III
- Pont Neuf
- Ponta do Seixas
- Pontederia crassipes
- Pontianak
- Pontifical Xavierian University
- Poodle
- Pope Alexander VI
- Pope Lucius III
- Pope Nicholas II
- Popular assembly
- Popular music
- Population transfer in the Soviet Union
- Populus tremuloides
- Populus trichocarpa
- Pornographic film
- Port
- Port Elizabeth
- Port Moresby
- Port Said
- Port Vila
- Port of Barcelona
- Port of Chicago
- Port of Hamburg
- Port of Jebel Ali
- Port of Kobe
- Port of New York and New Jersey
- Port of Spain
- Port of Yokohama
- Port-au-Prince
- Port-de-Paix
- PortMiami
- Portative organ
- Portia (spider)
- Portico
- Portland cement
- Porto Torres
- Portrait photography
- Portugal
- Portuguese literature
- Positional notation
- Post-Newtonian expansion
- Post-production
- Post-translational modification
- Postgraduate education
- Postharvest
- Postmodern architecture
- Potassium bitartrate
- Potassium chloride
- Potoo
- Poultice
- Pound sterling
- Power good signal
- Power hammer
- Power station
- Power system protection
- Pragmatics
- Prairie
- Prayer wheel
- Pre-Islamic Arabia
- Pre-existence
- Pre-exponential factor
- Pre-main-sequence star
- Preamble
- Precedent
- Precious coral
- Precious metal
- Precipitation (chemistry)
- Precipitation hardening
- Preemption (computing)
- Pregnancy (mammals)
- Prehistoric music
- Prelude (music)
- Premonstratensians
- Prenex normal form
- Prerogative
- Prerogative writ
- Prescription drug
- Pressurized heavy-water reactor
- Pretoria
- Prie-dieu
- Priest
- Primary and secondary legislation
- Prime minister
- Primorsky Krai
- Prince
- Prince Charming
- Prince Henri of Orléans
- Prince Moritz of Anhalt-Dessau
- Princes of Conti
- Princess Anne County, Virginia
- Princess Louise of Stolberg-Gedern
- Principate
- Principle of explosion
- Print on demand
- Printed circuit board
- Printing press
- Prison
- Prison escape
- Prisoner (TV series)
- Prisoner's dilemma
- Private Eye
- Private collection
- Private equity
- Private law
- Private transport
- Probability amplitude
- Probability density function
- Problem solving
- Proby Cautley
- Procedural modeling
- Processor register
- Proclamation of the Republic (Brazil)
- Procopius of Gaza
- Professional certification
- Professional video camera
- Professional wrestling
- Programming paradigm
- Progressive scan
- Prohibition of drugs
- Projectile
- Projectile motion
- Pronoun
- Proof by contradiction
- Proofreading
- Propaganda
- Propane
- Property
- Property law
- Prophecy
- Prophets and messengers in Islam
- Propositional calculus
- Prose poetry
- Prostate cancer
- Protein structure
- Protein targeting
- Protest song
- Protonosphere
- Protractor
- Province of Maryland
- Province of Massachusetts Bay
- Province of New York
- Province of Pennsylvania
- Provinces of Ireland
- Provinces of Rwanda
- Provisional Government of Western Thrace
- Provost (civil)
- Pruning
- Psalms of Asaph
- Pseudo-Isidore
- Pseudocereal
- Pseudomonas aeruginosa
- Pseudoperipteros
- Psilocybin
- Psychiatry
- Psychoanalysis
- Psychosis
- Pteridospermatophyta
- Pterophyllum
- Pterygota
- Ptolemaic Kingdom
- Ptolemaic dynasty
- Puberty
- Public administration
- Public domain
- Public health
- Public holiday
- Public limited company
- Public transport bus service
- Public-key cryptography
- Public-order crime
- Publican
- Publilius Syrus
- Publius Sulpicius Rufus
- Puebla (city)
- Puerto Real
- Puerto Rico
- Puerto Vallarta
- Pugwash Conferences on Science and World Affairs
- Pulse
- Pump organ
- Puncak Jaya
- Punch (magazine)
- Punch and Judy
- Punctuation
- Punjab, India
- Punjab, Pakistan
- Punkah
- Pupfish
- Purchasing
- Purebred
- Puroresu
- Purulia
- Put option
- Pyin Oo Lwin
- Pyrargyrite
- Pyroclastic flow
- Pyrophoricity
- Pythia
- Pößneck
- P–n diode
- QWERTY
- Qajar dynasty
- Qarmatians
- Qawwali
- Qi
- Qi (state)
- Qin Shi Huang
- Qing dynasty
- Qingming Festival
- Qixi Festival
- Qizilbash
- Qom
- Qom province
- Qonce
- Quackery
- Quad flat package
- Quaich
- Quakers
- Qualitative inorganic analysis
- Quantitative analysis (chemistry)
- Quantitative research
- Quantum indeterminacy
- Quark star
- Quarry
- Quarterstaff
- Quebec City
- Quebec French
- Queen of Sheba
- Queen regnant
- Queensland
- Quelimane
- Quercus alba
- Quercus velutina
- Quillota
- Quince
- Quintus Smyrnaeus
- Quito
- Quiver
- Quotation mark
- Quran
- RCA Spectra 70
- RGB color spaces
- RIA Novosti
- RMS Lusitania
- ROM image
- RSA (cryptosystem)
- RTHK
- Rabat
- Rabbet
- Rabbi
- Rabbinic Judaism
- Rabbit
- Rackets (sport)
- Radian per second
- Radiant flux
- Radiation protection
- Radicle
- Radio
- Radio broadcasting
- Radio spectrum pollution
- Radio-frequency engineering
- Radiometry
- Raetia
- Ragdoll
- Raigarh
- Raijin
- Rail freight transport
- Rail yard
- Railgun
- Railroad car
- Railway electrification system
- Railway track
- Rainforest
- Rajahmundry
- Rajasthan
- Rajkot
- Rajput painting
- Rakhine State
- Rakshasa
- Raleigh, North Carolina
- Ralph Winwood
- Ralph de Gael
- Ralph of Coggeshall
- Raman spectroscopy
- Ramanathapuram
- Ramayana
- Ramesses II
- Rammed earth
- Ranch
- Ranged weapon
- Rangpur, Bangladesh
- Ranitidine
- Rapier
- Rapping
- Rarotonga
- Rash
- Rasht Valley
- Raspberry Pi
- Raster graphics
- Rat
- Rate of return
- Rational number
- Ratnapura
- Rattanakosin Kingdom (1782–1932)
- Ravana
- Ravenna
- Rawmarsh
- Rawson, Chubut
- Raymond VI, Count of Toulouse
- Reactivity (chemistry)
- Reader's Digest
- Ready-mix concrete
- Real estate appraisal
- Real tennis
- Real-valued function
- Reality television
- Rear admiral
- Rebar
- Recaizade Mahmud Ekrem
- Recanati
- Recessional velocity
- Reconquista
- Record sealing
- Recorder (musical instrument)
- Recrystallization (chemistry)
- Rectifier
- Recumbent bicycle
- Red
- Red River of the South
- Red Sea
- Red squirrel
- Redox indicator
- Reducing agent
- Reductionism
- Reduviidae
- Reed (mouthpiece)
- Reflection seismology
- Reflective memory
- Reformed Church in the United States
- Refractive index
- Refrigeration
- Refugee
- Regalia
- Reggae
- Reggio Calabria
- Region of Murcia
- Registan
- Regium Donum
- Regla
- Regression analysis
- Rehearsal
- Reichskammergericht
- Reign of Terror
- Reincarnation
- Reiyūkai
- Relic
- Religious Jewish music
- Religious art
- Religious conversion
- Religious denomination
- Religious music
- Religious organization
- Religious war
- Remaster
- Rembrandt
- Renaissance architecture
- Renaissance literature
- Renaud de Montauban
- Renminbi
- Reno, Nevada
- René Descartes
- René Duguay-Trouin
- René Goblet
- René of Anjou
- René-Robert Cavelier, Sieur de La Salle
- Repeating crossbow
- Replication crisis
- Repnin
- Reproduction
- Republic
- Republic (Plato)
- Republic of Artsakh
- Republic of Karelia
- Republic of Ragusa
- Republic of Texas
- Republika Srpska
- Requena, Valencia
- Requiem (Mozart)
- Requiem shark
- Research
- Research and development
- Residual-current device
- Resonance
- Resonance (chemistry)
- Resonator
- Resource war
- Respiratory sounds
- Rest area
- Restorationism
- Resultant force
- Resurrection
- Reticle
- Retinue
- Retort
- Retriever
- Reusability
- Revelation
- Reverse engineering
- Reverse genetics
- Revolutions of 1917–1923
- Revolutions of 1989
- Revolutions per minute
- Rewari
- Reykjavík
- Reynolds number
- Reynosa
- Rhetoric
- Rhianus
- Rhine
- Rhode Island
- Rhodesia
- Rhotic consonant
- Rhoticity in English
- Rhyme
- Rhyming slang
- Rhythm
- Rhön Mountains
- Riau Archipelago
- Rib
- Ribaldry
- Ribeirão Preto
- Riccoldo da Monte di Croce
- Richard Andree
- Richard Beauchamp, 13th Earl of Warwick
- Richard Cobden
- Richard Rich, 1st Baron Rich
- Richard Ros
- Richmond, Virginia
- Richneck Plantation
- Ricimer
- Ricina
- Ridge
- Rieti
- Rift lake
- Rigas Feraios
- Right ascension
- Right of asylum
- Right of self-defense
- Right-wing politics
- Rimini
- Ring galaxy
- Ringmaster (circus)
- Rio Branco, Acre
- Riot grrrl
- Rise of nationalism in the Ottoman Empire
- Rite of passage
- River Avoca
- River engineering
- Riverside, California
- Rivet
- Riyad Pasha
- Road roller
- Road transport
- Roald Amundsen
- Robert Adamson (philosopher)
- Robert Clive
- Robert Filmer
- Robert Louis Stevenson
- Robert Lundy
- Robert Manwaring
- Robert McClure
- Robert Nugent, 1st Earl Nugent
- Robert O'Hara Burke
- Robert Smith (mathematician)
- Robert Spencer, 2nd Earl of Sunderland
- Robert Warburton
- Robinson Crusoe
- Robinson Ellis
- Robot
- Robot Patent
- Robotics
- Roche lobe
- Rock Around the Clock
- Rock music
- Rocket engine
- Rocky
- Rococo
- Rod cell
- Rodolphe Kreutzer
- Rodrigues
- Roeselare
- Roger Ascham
- Roger Joseph Boscovich
- Roger Q. Mills
- Rohilla
- Rohingya genocide
- Roland Laporte
- Role model
- Roman Campagna
- Roman Curia
- Roman Kingdom
- Roman Rota
- Roman conquest of the Iberian Peninsula
- Roman legion
- Romance languages
- Romance of the Three Kingdoms
- Romanesque art
- Romani people
- Romanian Revolution
- Rome
- Rome Metro
- Roof
- Roof shingle
- Root
- Root canal
- Root canal treatment
- Root of unity
- Rosalinda (Mexican TV series)
- Rosario, Santa Fe
- Rose
- Rose oil
- Rostock
- Rostov-on-Don
- Rostrevor
- Rotation
- Rotation (mathematics)
- Rotation of ammunition
- Rotterdam
- Rougarou
- Rough Collie
- Rovinj
- Rowan & Martin's Laugh-In
- Roxolani
- Royal Crown Derby
- Royal National Park
- Royal sign-manual
- Ruabon
- Rub' al Khali
- Rubaiyat of Omar Khayyam
- Rubidium–strontium dating
- Ruby
- Rudolf Baumbach
- Rudolf Carnap
- Rudolf von Jhering
- Rukwa Region
- Rule of division (combinatorics)
- Rule, Britannia!
- Rulemaking
- Ruling class
- Rum (endonym)
- Rundlet
- Runes
- Runnymede
- Runway
- Rupnagar
- Russell's paradox
- Russian Orthodox Church
- Russian State Library
- Russian language
- Russian mafia
- Russo-Japanese War
- Russo-Turkish War (1877–1878)
- Rust
- Rustenburg
- Rutabaga
- Rutan Voyager
- Rutgers University
- Rutherford model
- Ruvuma River
- Ruwais
- Rydberg formula
- Rye
- Ryukyu Islands
- Ryukyu Kingdom
- Ryukyuan people
- Ryūnosuke Akutagawa
- Río Negro Province
- Rạch Giá
- SCSI connector
- SD card
- SECAM
- SMS
- SN 1054
- Saana
- Saarbrücken
- Saaremaa
- Sabbath
- Saber-toothed predator
- Saccharomyces cerevisiae
- Sacred space
- Saddle
- Sadh
- Sadi Carnot (statesman)
- Sado, Niigata
- Safety
- Safety glass
- Safflower
- Safi, Morocco
- Saga Prefecture
- Sagrada Família
- Saharanpur
- Sahasranama
- Sahib
- Sahiwal
- Sahrawi Arab Democratic Republic
- Saidapet
- Sailcloth
- Sailing ship tactics
- Sailor Moon (character)
- Saint Boniface
- Saint Croix
- Saint Lucia
- Saint Martin (island)
- Saint Roch
- Saint Timothy
- Saint Vincent (Antilles)
- Saint-Omer
- Saint-Pierre, Saint Pierre and Miquelon
- Saint-Étienne
- Sainte-Anne-de-Beaupré
- Saitama (city)
- Saitama Prefecture
- Sakha
- Sakhalin
- Sakoku
- Sakshi (newspaper)
- Salalah
- Salamis Island
- Salem witch trials
- Salem, Oregon
- Salem, Tamil Nadu
- Salento
- Sales
- Salsa (dance)
- Salt Range
- Salt lake
- Salta
- Samar
- Samara
- Samba (Brazilian dance)
- Samoan Islands
- Samoan language
- Sampierdarena
- Sample mean and covariance
- Sampler (musical instrument)
- Sampling (signal processing)
- Samsung
- Samuel Baker
- Samuel Birch
- Samuel Dana Horton
- Samuel Lister, 1st Baron Masham
- Samuel Morse
- Samuel Phelps
- Samuel de Champlain
- Samuel von Pufendorf
- Samurai
- San Andreas Fault
- San Cristóbal, Táchira
- San Fernando, Trinidad and Tobago
- San Francisco
- San Francisco Bay
- San Juan Province, Argentina
- San Juan, Metro Manila
- San Juan, Puerto Rico
- San Luis Potosí City
- San Luis Province
- San Marino
- San Miguel de Tucumán
- San Salvador
- Sanctions (law)
- Sand
- Sandfly
- Sandhi
- Sangha
- Sango language
- Sanitary engineering
- Sanitary sewer
- Santa Ana, El Salvador
- Santa Clara, Cuba
- Santa Cruz de Tenerife
- Santa Cruz de la Sierra
- Santa Fe Province
- Santa Fe, Argentina
- Santa María (volcano)
- Santa Rita Durão
- Santal people
- Santiago
- Santiago Metro
- Santo Domingo
- Santos, São Paulo
- Sanxing (deities)
- Sapienza University of Rome
- Sapphire
- Sapporo
- Sapporo Municipal Subway
- Saqqara
- Saratov
- Sarawak
- Sarcophagus
- Saron (instrument)
- Sartoris
- Sasaram
- Satara (city)
- Satellite navigation device
- Satna
- Satricum
- Saturday Night Fever
- Sauna
- Savannah, Georgia
- Savannakhet
- Savar
- Savoy cabbage
- Sawantwadi taluka
- Saxifraga
- Saxophone
- Scaffolding
- Scala (programming language)
- Scalable Vector Graphics
- Scaling (geometry)
- Scallion
- Scandinavian Airlines
- Scanning electron microscope
- Scarecrow
- Scattering
- Scenic design
- Scheme (linguistics)
- Schiavone
- Schism
- Schleswig-Holstein
- Schmalkalden
- Schmidt Island
- Scholarly method
- School
- School governor
- Schuylkill River
- Schwa
- Schwelm
- Schöneberg
- Science fiction fandom
- Scientific American
- Scientific theory
- Scientist
- Scimitar
- Scipio Aemilianus
- Scissors
- Scooby-Doo
- Scooter (motorcycle)
- Scops owl
- Scotia Sea
- Screamer
- Screen Actors Guild
- Screw
- Scrutiny
- Scutage
- Scutum (constellation)
- Scythians
- Sea cucumber
- Sea level
- Sea of Japan
- Sea pen
- Sea serpent
- Seabiscuit
- Seaham
- Seahorse
- Search algorithm
- Search warrant
- Sears Cook Walker
- Season extension
- Secession
- Second Anglo-Mysore War
- Second Bank of the United States
- Second Battle of Bull Run
- Second Boer War
- Second Congo War
- Second Congress of Rastatt
- Second Council of Ephesus
- Second East Turkestan Republic
- Second Franco-Dahomean War
- Second Liberian Civil War
- Second Opium War
- Second Temple period
- Second Triumvirate
- Second Vatican Council
- Second law of thermodynamics
- Secret society
- Secretary
- Secular ethics
- Secular humanism
- Secular morality
- Secularism in France
- Security engineering
- Security guard
- Security hacker
- Sedative
- Sefirot
- Seismometer
- Selaginella
- Selection sort
- Seleucid Empire
- Self-defeating personality disorder
- Self-determination
- Semibatch reactor
- Semiconductor detector
- Semiconductor device
- Semiramis
- Semisynthesis
- Sendai
- Senecan tragedy
- Senegal
- Sentence (law)
- Seoul
- Separation of church and state
- September equinox
- Serampore
- Serang
- Serbo-Croatian
- Serenade
- Serengeti National Park
- Seres (automobiles)
- Serfdom
- Serial (radio and television)
- Serial ATA
- Serial communication
- Serialism
- Series expansion
- Service (economics)
- Servius (grammarian)
- Sestri Levante
- Seto Inland Sea
- Sevastopol
- Seven Bridges of Königsberg
- Seven Cities of Gold
- Seven Years' War
- Seventh-day Adventist Church
- Severnaya Zemlya
- Sewell's Point
- Sex
- Sex and the City
- Sex organ
- Sex-positive feminism
- Sexual dysfunction
- Sexual reproduction
- Sexual revolution
- Seychelles
- Sfax
- Shaanxi
- Shadhili
- Shading language
- Shahjahanpur
- Shahnameh
- Shahreza
- Shahrud
- Shakespeare's plays
- Shallot
- Shampoo
- Shandong Peninsula
- Shanghai International Settlement
- Shanghai Jiao Tong University
- Shanghai Metro
- Shanghai Pudong International Airport
- Shanghainese
- Shanhai Pass
- Shanxi
- Shape note
- Shape of the universe
- Shapeshifting
- Shapur I
- Shapur II
- Share taxi
- Sharecropping
- Shareholder
- Shchedryk (song)
- Sheaf (mathematics)
- Shear (geology)
- Sheet music
- Shell script
- Shenyang
- Sher Ali Khan
- Sheremetyevo International Airport
- Sheridan Le Fanu
- Sheriff
- Shetland pony
- Shield
- Shield (geology)
- Shifter (bicycle part)
- Shifting cultivation
- Shijingshan District
- Shikoku
- Shimonoseki
- Shinasha people
- Shinkansen
- Ship
- Shipyard
- Shizuoka (city)
- Shogi
- Shogun
- Short film
- Short story
- Shortest path problem
- Shotcrete
- Shotgun
- Shotgun shell
- Shotgun slug
- Shovel
- Show Boat
- Shower gel
- Shrine
- Shropshire
- Shrub
- Siamese cat
- Sibi
- Sicily
- Sickle
- Sidi Bel Abbès
- Siding (construction)
- Siebengebirge
- Siege of Acre (1189–1191)
- Siege of Acre (1291)
- Siege of Baghdad (1258)
- Siege of Belgrade (1456)
- Siege of Leningrad
- Siege of Lucknow
- Siege of Orléans
- Siege of Paris (1870–1871)
- Siege of Pembroke
- Siege of Sarajevo
- Siege of Vicksburg
- Siemens Mobility
- Siena
- Sierra Madre del Sur
- Sigfrid Siwertz
- Sighișoara
- Sign (mathematics)
- Signage
- Signal-to-noise ratio
- Signaling (telecommunications)
- Sigynnae
- Sikkim
- Silage
- Silent letter
- Silifke
- Silk Road
- Silk Road transmission of Buddhism
- Silo
- Silver carp
- Similarity (geometry)
- Simmental cattle
- Simon Foucher
- Simon Stevin
- Simon of Saint-Quentin
- Simple programmable logic device
- Simplified Chinese characters
- Sina Weibo
- Sinaloa
- Singanallur
- Singer-songwriter
- Single bond
- Single-page application
- Singlet oxygen
- Sink
- Sinking of the RMS Lusitania
- Sinking of the Rainbow Warrior
- Sir William Stirling-Maxwell, 9th Baronet
- Sirhind-Fategarh
- Sirohi
- Sisak
- Sistine Chapel
- Sita
- Sitar
- Sittwe
- Sivas
- Six Characters in Search of an Author
- Six-Day War
- Sixel
- Sixth generation of video game consoles
- Ska
- Skeletal muscle
- Skeleton
- Skeleton key
- Skiathos
- Skin
- Skin infection
- Skinhead
- Sky brightness
- Sky deity
- Skyscraper
- Slash-and-burn
- Slaughterhouse
- Slavic languages
- Slavs
- Sleep apnea
- Slime mold
- Sling (weapon)
- Slovak Paradise
- Slovak language
- Slovene language
- Sluice
- Smederevo
- Smelting
- Smog
- Smooth muscle
- Snail
- Snake charming
- Snake worship
- Sniper
- Snorri Sturluson
- Snow leopard
- Snowball Earth
- Soap Box Derby
- Soap opera
- Sobriquet
- Social Darwinism
- Social anthropology
- Social change
- Social class
- Social conservatism
- Social enterprise
- Social media
- Social order
- Social philosophy
- Social theory
- Socialism
- Socialist law
- Sodium hypochlorite
- Soffit
- Softmodem
- Software
- Software design
- Software development
- Software documentation
- Software maintenance
- Software portability
- Soil physics
- Sokollu Mehmed Pasha
- Sokoto
- Sol (colloid)
- Solanaceae
- Solar calendar
- Solar cell
- Solar deity
- Solar power
- Sole proprietorship
- Solicitation
- Solicitor
- Solid
- Solid angle
- Solid geometry
- Solid solution
- Solidago
- Solomon
- Solomon Islands
- Solstice
- Solvent
- Somali language
- Somaliland
- Somapura Mahavihara
- Somatic cell
- Somatic cell nuclear transfer
- Somatosensory system
- Somewhere (song)
- Sonar
- Sonata da camera
- Song
- Song of Songs
- Songhai Empire
- Songkran
- Songs of Innocence and of Experience
- Sophie's World
- Sorrento
- Soul
- Soul loss
- Soul music
- Sound change
- Sound recording and reproduction
- Soundtrack
- Sousaphone
- South African English
- South American Plate
- South Asian Association for Regional Cooperation
- South Caucasus
- South Central China
- South Chungcheong Province
- South Georgia and the South Sandwich Islands
- South Island
- South Jeolla Province
- South Malaita Island
- South Moravian Region
- South Shetland Islands
- South Sudan
- South Tyrol
- South Vietnam
- Southampton
- Southern California
- Southern England
- Southern Min
- Southern Ndebele language
- Southern right whale
- Sovereign Military Order of Malta
- Sovereignty
- Soviet Union
- Soybean
- Sozomen
- Space
- Space colonization
- Space habitat
- Space probe
- Space rendezvous
- Space suit
- Space-filling model
- Spade
- Spain
- Spallation
- Span (unit)
- Spanish Civil War
- Spanish Empire
- Spanish Inquisition
- Spanish Renaissance architecture
- Spanish architecture
- Spanish conquest of the Inca Empire
- Spanish language
- Spanish literature
- Spanish–American War
- Spear
- Spearmint
- Special forces
- Spectral energy distribution
- Spectroscopy
- Speech
- Speech disorder
- Speed
- Speed Racer
- Spelling pronunciation
- Sperm
- Sphere of influence
- Spherical harmonics
- Spin (physics)
- Spindle (textiles)
- Spinning wheel
- Spirit level
- Spirituality
- Spitzer Space Telescope
- Splinter
- Spoiler (aeronautics)
- Spoken word
- Sporangium
- Spore
- Sport
- Sports commentator
- Sports journalism
- Sports medicine
- Sports radio
- Spotted ratfish
- Spring break
- Spring steel
- Spruce
- Spur
- Sputnik 2
- Spyridon Trikoupis
- Spyware
- Square Kilometre Array
- Square dance
- Square foot
- Square root of 2
- Square yard
- Squeeze theorem
- Squinch
- Sri Jayawardenepura Kotte
- Srikakulam
- St Matthew Passion
- St. Catharines
- St. Elmo's fire
- St. George's, Grenada
- St. John's, Antigua and Barbuda
- St. John's, Newfoundland and Labrador
- St. Lawrence Seaway
- St. Peter's Basilica
- Staff (military)
- Stage (theatre)
- Stage management
- Stagecoach
- Stagecraft
- Staging (theatre, film, television)
- Stained glass
- Stainless steel
- Stairs
- Stairway to Heaven
- Stand by Your Man
- Stand-up comedy
- Standard Model
- Standard Oil
- Standardization
- Standards Department
- Standing Committee of the National People's Congress
- Stannary
- Star Trek: The Original Series
- Star Wars
- Star cluster
- Starch
- State Opening of Parliament
- State University of New York
- State of emergency
- State religion
- State school
- Statelessness
- Statement of changes in equity
- States and federal territories of Malaysia
- States and territories of Australia
- States of Germany
- States of Venezuela
- States' rights
- Static electricity
- Static random-access memory
- Statistical physics
- Statistics
- Statute of Westminster 1931
- Statutory interpretation
- Statutory law
- Stavanger
- Steam locomotive
- Steamboat Willie
- Steampunk
- Steamship
- Steel building
- Stefano Jacini
- Stellar classification
- Stellar parallax
- Step cutting
- Step dance
- Steppe
- Stereocenter
- Sterilization (microbiology)
- Sternum
- Stewardship (theology)
- Stingless bee
- Stirling cycle
- Stock
- Stock character
- Stock exchange
- Stock market index
- Stockholm
- Stockholm Archipelago
- Stocking
- Stockton, California
- Stonemasonry
- Stonewall Jackson
- Stoolball
- Stop motion
- Stork
- Story arc
- Storytelling
- Strait of Malacca
- Strait of Otranto
- Strategic bombing during World War II
- Strathpeffer
- Stratocumulus cloud
- Stratum
- Straubing
- Straw
- Stream bed
- Streamline Moderne
- Street photography
- Stress (mechanics)
- Strike action
- String (computer science)
- String Quartets, Op. 76 (Haydn)
- String instrument
- Stroke
- Strong cryptography
- Strong interaction
- Strophe
- Structural analysis
- Structural chemistry
- Structural geology
- Structured cabling
- Stuart Restoration
- Studio system
- Stunt
- Sturdza family
- Styria
- Subarctic
- Subconscious
- Submersible
- Submillimetre astronomy
- Subotica
- Subroutine
- Substantive dye
- Substantive law
- Substitution (law)
- Subtraction
- Subtractor
- Suburb
- Suede
- Suez Crisis
- Sugar alcohol
- Sugar beet
- Sugarcane
- Suite (music)
- Sukhothai Kingdom
- Sulfur
- Sulfur hexafluoride circuit breaker
- Sultan
- Sulu Archipelago
- Sumerian King List
- Sumerian language
- Summary judgment
- Sunda Kingdom
- Sundanese language
- Sundarbans
- Sundarbans National Park
- Sunday
- Sunderland
- Sungai Ruan
- Sunlight
- Sunrise (Australian TV program)
- Sunroom
- Superconductivity
- Supererogation
- Superhero fiction
- Superman (1978 film)
- Supermarket
- Superstring theory
- Supersymmetry
- Supply and demand
- Supply chain management
- Supporting character
- Supreme Court of Canada
- Supreme Court of the United Kingdom
- Supreme Court of the United States
- Surabaya
- Surakarta
- Surety
- Surface (mathematics)
- Surface area
- Surface mining
- Surge protector
- Surgery
- Suriname
- Surprise (emotion)
- Surrealism
- Surrey
- Suruga Bay
- Surveillance aircraft
- Surveyor's wheel
- Susanna Centlivre
- Suspended load
- Sutemi Horiguchi
- Sutlej
- Svasaṃvedana
- Swahili language
- Swan Lake
- Swarthmore College
- Swather
- Sweating sickness
- Swedish colonies in the Americas
- Sweet potato
- Swellendam
- Swing (dance)
- Swiss Army knife
- Swiss German
- Swiss franc
- Switch statement
- Swordfish
- Sydney Opera House
- Syktyvkar
- Sylhet Division
- Syllable
- Syllogism
- Symmetric relation
- Symmetric-key algorithm
- Symmetry breaking
- Symphony No. 2 (Rachmaninoff)
- Symphony No. 3 (Saint-Saëns)
- Symphony No. 5 (Mahler)
- Symphony No. 5 (Shostakovich)
- Symphony No. 5 (Sibelius)
- Symphony No. 5 (Tchaikovsky)
- Symphony No. 6 (Tchaikovsky)
- Symphony No. 7 (Shostakovich)
- Symphony No. 8 (Schubert)
- Symphony No. 9 (Schubert)
- Synagogue
- Synchronous circuit
- Syncretism
- Synod
- Synod of Ancyra
- Synod of Arles
- Syntactic change
- Syntax (programming languages)
- Syracuse, New York
- Syrian Wars
- Syro-Malabar Church
- Syros
- System Management Mode
- System of measurement
- System on a chip
- System software
- Systems design
- Szczawno-Zdrój
- Sámi
- Sápmi
- São Francisco River
- São Gonçalo, Rio de Janeiro
- São Jorge Island
- São José dos Campos
- São Paulo (state)
- São Paulo Metro
- São Tomé and Príncipe
- Sønderborg
- Süddeutsche Zeitung
- T Tauri star
- T-square
- TRS-80
- TV Guide
- Table (furniture)
- Table View
- Tablet (pharmacy)
- Tabuk Province
- Tachylite
- Tacloban
- Tactical formation
- Taddeo Zuccari
- Taebaek Mountains
- Tafsir
- Tagalog language
- Taganrog
- Tagesschau (German TV programme)
- Tagus
- Tahiti
- Tahr
- Taichung
- Taif
- Taifa
- Taihang Mountains
- Taipei 101
- Taiping Rebellion
- Taiwan under Japanese rule
- Taiwan under Qing rule
- Taiwanese Hokkien
- Takasaki
- Take the "A" Train
- Taklamakan Desert
- Tala (music)
- Tallahassee, Florida
- Tally marks
- Taluqdar
- Tamarin
- Tambralinga
- Tanabata
- Tandem bicycle
- Tangail
- Tangier
- Tanglewood
- Tango
- Tanistry
- Tank
- Tannaim
- Tannic acid
- Tannin
- Tanning (leather)
- Tanzania
- Tao Te Ching
- Taobao
- Taoyuan, Taiwan
- Tap dance
- Tape measure
- Tapir
- Tappet
- Tara (Buddhism)
- Tarantula
- Tariff
- Taro
- Tarpaulin
- Tarquinia
- Tarragon
- Tartus
- Tarumanagara
- Tashkent
- Taste
- Tatarstan
- Tatort
- Tatya Tope
- Taunggyi
- Taungoo
- Tavistock
- Tawhid
- Taxi
- Tayabas
- Tayport
- Tbilisi
- Tea caddy
- Teal
- Teatro di San Carlo
- Technology
- Technology life cycle
- Technophilia
- Ted Stevens Anchorage International Airport
- Teff
- Tegal
- Tegenaria domestica
- Tegucigalpa
- Tehran
- Telemetry
- Telephone
- Telephony
- Teleportation
- Telescope mount
- Television
- Television advertisement
- Television in Australia
- Television in China
- Television in Mexico
- Television in Pakistan
- Television in Russia
- Television in South Korea
- Television in Spain
- Television in Thailand
- Television in Turkey
- Television in the Philippines
- Television in the United States
- Television show
- Television studio
- Temperate climate
- Temperate forest
- Temperate rainforest
- Temperature
- Temperature measurement
- Temple of Confucius
- Temuco
- Tengu
- Tennis Court Oath
- Tenor
- Tenrikyo
- Tent
- Teotihuacan
- Terengganu
- Teresina
- Terma (religion)
- Terrain
- Terrassa
- Terrestrial television
- Terrorism
- Tetraethyllead
- Tetragonal crystal system
- Tetrapod
- Text file
- Text messaging
- Text mode
- Textbook
- Textile manufacturing
- Tezpur
- Thai language
- Thai script
- Thar Desert
- That'll Be the Day
- Thaumaturgy
- The Adventures of Prince Achmed
- The Age
- The Apprentice (American TV series)
- The Art of Fugue
- The Axis of Perdition
- The Benny Hill Show
- The Birth of Venus (Bouguereau)
- The Birth of a Nation
- The Blue Marble
- The Bob Newhart Show
- The Brady Bunch
- The Bride Stripped Bare by Her Bachelors, Even
- The Brief Wondrous Life of Oscar Wao
- The Bronx
- The Cantos
- The Chosun Ilbo
- The Cloud of Unknowing
- The Coca-Cola Company
- The Communist Manifesto
- The Corrections
- The Daily Telegraph
- The Death and Life of Great American Cities
- The Death of Marat
- The Decameron
- The Denver Post
- The Doctor (Doctor Who)
- The Dukeries
- The Dukes of Hazzard
- The Education of Henry Adams
- The Exorcist
- The Feynman Lectures on Physics
- The Firebird
- The Fresh Prince of Bel-Air
- The Gambia
- The General Theory of Employment, Interest and Money
- The Girl from Ipanema
- The Good Soldier
- The Grapes of Wrath
- The Guardian
- The Hague
- The Hindu
- The Histories (Polybius)
- The Home Depot
- The Honeymooners
- The Hound of the Baskervilles
- The House of the Rising Sun
- The Jeffersons
- The Jetsons
- The Kid (1921 film)
- The Kiss (Hayez)
- The Kiss (Rodin sculpture)
- The Last Rose of Summer
- The Last of the Mohicans
- The Legend of Sleepy Hollow
- The Love Boat
- The Man Without Qualities
- The Maritimes
- The Mill on the Floss
- The Mountain
- The Muppet Show
- The Name of the Rose
- The New Yorker
- The Nikkei
- The Nutcracker
- The Odd Couple (1970 TV series)
- The Osbournes
- The Partridge Family
- The Phantom
- The Phantom of the Opera (1986 musical)
- The Phil Donahue Show
- The Pilgrim's Progress
- The Playboy of the Western World
- The Price Is Right
- The Prince and the Pauper
- The Protectorate
- The Ren & Stimpy Show
- The Ruins of Athens
- The Selfish Gene
- The Shadow
- The Shining (film)
- The Smurfs
- The Straits Times
- The Structure of Scientific Revolutions
- The Tale of Genji
- The Tale of Igor's Campaign
- The Tales of Hoffmann
- The Temple of the Golden Pavilion
- The Time Machine
- The Times They Are a-Changin' (song)
- The Times of India
- The Tin Drum
- The Tonight Show
- The Transformers (TV series)
- The Twelve Caesars
- The Twilight Zone (1959 TV series)
- The Village Voice
- The Void (philosophy)
- The Way of All Flesh
- The Wind in the Willows
- The Wire
- The Wizard of Oz (1939 film)
- The X Factor (British TV series)
- The Young and the Restless
- The arts
- Theatre
- Thecla
- Theodor Körner (author)
- Theophany
- Theophilos (emperor)
- Theorem
- Theory of everything
- Therapy
- Thermal conduction
- Thermal decomposition
- Thermal desorption
- Thermal expansion
- Thermal power station
- Thermocouple
- Thermodynamic state
- Thermogenesis
- Thermolabile
- Thermonuclear weapon
- Thermoregulation
- Thessaloniki
- Thietmar of Merseburg
- Thin client
- Thin lens
- Third Anglo-Burmese War
- Thomas & Friends
- Thomas Anstey Guthrie
- Thomas Cochrane, 10th Earl of Dundonald
- Thomas D'Arcy McGee
- Thomas De Quincey
- Thomas Doggett
- Thomas Farrer, 1st Baron Farrer
- Thomas Girtin
- Thomas Sully
- Thomas Wentworth, 1st Earl of Strafford
- Thomisidae
- Thomson scattering
- Three Gorges
- Three Kingdoms
- Three-age system
- Threnody
- Throne (angel)
- Throwing knife
- Thumbelina
- Thunderbird (mythology)
- Thunderbolt (interface)
- Thursday
- Thus Spoke Zarathustra
- Thyme
- Thyreophora
- Thyroid hormones
- Théophile Corret de la Tour d'Auvergne
- Tiaret
- Tiberius Hemsterhuis
- Tibullus
- Ticinum
- Tightrope walking
- Tijuana
- Till Death Us Do Part
- Time (magazine)
- Time of Troubles
- Time signature
- Timeline of jet power
- Timeline of military aviation
- Timeline of the early universe
- Timeline of zoology
- Timothy II of Alexandria
- Timpani
- Timurid Empire
- Tincture
- Tip-cat
- Tirah
- Tissue (biology)
- Titanic
- Tithe
- Title
- Tivoli circuit
- Tlaquepaque
- Tlatelolco massacre
- Tobacco
- Tobago
- Toboggan
- Tocantins
- Toda people
- Today (American TV program)
- Today Tonight
- Tohoku University
- Token coin
- Tokugawa shogunate
- Tokusatsu
- Tokushima Prefecture
- Tokyo
- Tokyo Metro
- Toledo, Ohio
- Tolentino
- Toleration
- Toltec Empire
- Tom and Jerry
- Tomato
- Tomsk
- Tongan language
- Tongi
- Tony Awards
- Tool steel
- Tooth decay
- Tooth fairy
- Toothpaste
- Top-level domain
- Topeka, Kansas
- Topical medication
- Topkapı Palace
- Topography
- Topsy (elephant)
- Tor (network)
- Toronto
- Toronto subway
- Torreón
- Torsion (mechanics)
- Total station
- Touba
- Toughness
- Tourism
- Tours
- Tower block
- Town
- Town square
- Toxicity
- Toxicology
- Toxin
- Toy
- Toyama Prefecture
- Toyohashi
- Toyota, Aichi
- Tracery
- Trade association
- Trademark
- Traditional Chinese medicine
- Traditional animation
- Traffic
- Traffic light
- Trail
- Trail of Tears
- Trailer Park Boys
- Trajectory
- Trance
- Trance music
- Tranent
- Trans-African Highway network
- Trans-European high-speed rail network
- Trans-Siberian Railway
- Transatlantic telegraph cable
- Transistor
- Transitive relation
- Transliteration
- Transmissible spongiform encephalopathy
- Transmission system operator
- Transmission tower
- Transnistria
- Transparency (human–computer interaction)
- Transparency and translucency
- Transport
- Transport hub
- Transportation engineering
- Transverse mode
- Transverse wave
- Trass
- Travemünde
- Treasure Island
- Treaty
- Treaty of Brest-Litovsk
- Treaty of Lisbon
- Treaty of Peace with Italy, 1947
- Treaty of San Francisco
- Treaty of Tordesillas
- Treaty of Zaragoza
- Tree (data structure)
- Tree fern
- Trespass to land
- Triage
- Trial
- Tribe
- Tribunal
- Tribute act
- Triclinium
- Tricycle
- Trigger (firearms)
- Trim tab
- Trimurti
- Trinidad and Tobago
- Trinity
- Tripartite Struggle
- Tripiṭaka
- Triple junction
- Tripoli
- Tristan
- Tristan und Isolde
- Tritiated water
- Triticale
- Tritium
- Tritone
- Triumph of the Will
- Triumvirate
- Trnava
- Troilus and Cressida
- Trolleybus
- Trombicula
- Trombone
- Tromsø
- Trondheim
- Tropic of Cancer (novel)
- Tropical and subtropical moist broadleaf forests
- Tropical fish
- Tropical rainforest
- Trotline
- Trout
- Troy weight
- Truck driver
- True parrot
- Truffle
- Trumpet
- Trust law
- Tréguier
- Tsar
- Tsardom of Russia
- Tsetse fly
- Tsinghua University
- Tsonga language
- Tsu, Mie
- Tuareg people
- Tuba
- Tubifex
- Tubular bells
- Tudor rose
- Tuesday
- Tui na
- Tumkur
- Tuna
- Tundra
- Tunnel
- Tupi people
- Tupolev Tu-154
- Turan
- Turbine
- Turbojet
- Turing machine
- Turkey (bird)
- Turkic peoples
- Turkish War of Independence
- Turkish music (style)
- Turku
- Turmeric
- Turquoise
- Tuttlingen
- Tuva
- Tver
- Tweed
- Twelver Shi'ism
- Twentieth-century theatre
- Twig
- Twin prime
- Twist (dance)
- Two-stroke engine
- Type conversion
- Typeface
- Typewriter
- Typology (theology)
- Tyrol (state)
- Tyrrhenian Sea
- Távora affair
- Târgu Mureș
- Tébessa
- Tórshavn
- Tōhoku region
- U-boat campaign
- UK hard house
- UK miners' strike (1984–85)
- UNIVAC I
- Ubaid period
- Udmurtia
- Uganda
- Uijeongbu
- Ukrainian War of Independence
- Ulaanbaatar
- Ulan-Ude
- Ulrich, Duke of Württemberg
- Ulster
- Ultimate fate of the universe
- Ultrafast laser spectroscopy
- Ultraviolet–visible spectroscopy
- Uluru
- Ulysses (novel)
- Umbra, penumbra and antumbra
- Unbarred spiral galaxy
- Unconditional love
- Undercroft
- Undersea tunnel
- Unemployment benefits
- Ungava Peninsula
- Unicycle
- Unification of Saudi Arabia
- Union Jack
- Union between Sweden and Norway
- Union of Lublin
- Union of South Africa
- Union of South American Nations
- Unipedalism
- Unit cell
- Unit of account
- Unit of measurement
- Unitarian Universalism
- Unitarianism
- United Nations Radio
- United States Air Force Academy
- United States Code
- United States Department of State
- United States Department of the Treasury
- United States House of Representatives
- United States Naval Academy
- United States Postal Service
- United States invasion of Grenada
- United States invasion of Panama
- United States occupation of Haiti
- Units of information
- Universal Pictures
- University of Birmingham
- University of Bologna
- University of California
- University of California, Santa Barbara
- University of Coimbra
- University of Cologne
- University of Colorado Boulder
- University of Florida
- University of Freiburg
- University of Helsinki
- University of Navarra
- University of North Carolina at Chapel Hill
- University of Salamanca
- University of Science and Technology of China
- University of Tsukuba
- University of Tübingen
- University of Warwick
- University of Würzburg
- Unix
- Unix time
- Unix-like
- Unmanned aerial vehicle
- Unnao
- Upholstery
- Uppsala University
- Urartu
- Urbain Grandier
- Urban agriculture
- Urban renewal
- Urbanization
- Urfa
- Urinal
- Urology
- Ursa Major
- Ursid hybrid
- Uruguay River
- Us Weekly
- Usenet newsgroup
- User experience design
- Ushuaia
- Uthman
- Utility pole
- Utopia
- Utrecht
- Utsunomiya
- Uttarpara
- Uyo
- V.
- VBox Home TV Gateway
- VGA connector
- VHS
- Vacuum
- Vacuum cleaner
- Vacuum drying
- Vacuum pump
- Vacuum tube
- Vadodara
- Vajont Dam
- Valdemar IV of Denmark
- Valentin Conrart
- Valentinian I
- Valjevo
- Valladolid
- Valley
- Valparaíso Region
- Valuation (finance)
- Value-added service
- Value-added tax
- Valve
- Van
- Van der Waals equation
- Vanilla
- Vanua Levu
- Variable (computer science)
- Variable star
- Variety show
- Vasco da Gama
- Vasile Alecsandri
- Vasili III of Russia
- Vasily I of Moscow
- Vasily Lukich Dolgorukov
- Vasyugan Swamp
- Vatican City
- Vault (architecture)
- Vector calculus
- Vector field
- Vehicle
- Vehicle armour
- Vehicle insurance
- Vein
- Vein (geology)
- Velia
- Vellum
- Velocity
- Velvet
- Veneration of the dead
- Venezuela
- Vengurla
- Venice
- Ventura Ruiz Aguilera
- Venture capital
- Veracruz (city)
- Veranda
- Verona
- Vers de société
- Versailles, Yvelines
- Version control
- Vertebrate
- Vertical farming
- Very Large Scale Integration
- Very long instruction word
- Vestment
- Vettor Pisani
- Via Labicana
- Via Laurentina
- Vibration
- Vice
- Vice admiral
- Vicente Espinel
- Vicenza
- Vichy
- Vichy France
- Vicia faba
- Vicksburg, Mississippi
- Victimology
- Victor Cherbuliez
- Victor-François, 2nd duc de Broglie
- Victoria Falls
- Victoria Harbour
- Victoria and Albert Museum
- Vicuña
- Vidame
- Video coding format
- Videocassette recorder
- Videotelephony
- Vietnam War
- Vietnamese boat people
- Vigna aconitifolia
- Vigna mungo
- Vijayanagara
- Viking activity in the British Isles
- Villa
- Villa Las Estrellas
- Villanueva de la Serena
- Villavicencio
- Villein
- Vilvoorde
- Vincenzo Gioberti
- Vinh
- Vinnytsia Oblast
- Vint
- Viola
- Violin
- Violin Concerto (Mendelssohn)
- Vir Singh (writer)
- Virgin Galactic
- Virgin Islands
- Virginia Beach, Virginia
- Virginia opossum
- Virgo interferometer
- Virial expansion
- Virial theorem
- Virtual image
- Virtual machine
- Virtual memory
- Virtual power plant
- Virtue
- Visakhapatnam
- Viscount Scarsdale
- Viscount Strangford
- Viscount Taaffe
- Visegrád Group
- Visible-light astronomy
- Visual communication
- Visual cortex
- Visual effects
- Visual perception
- VisualWorks
- Vital signs
- Viticulture
- Vitruvian Man
- Vivant Denon
- Viveiro
- Vizier
- Vizzola Ticino
- Viña del Mar
- Vocational school
- Vogtland
- Vogue (magazine)
- Voice acting
- Voice over IP
- Voicing (music)
- Voiron
- Vojvodina
- Volatile memory
- Volatiles
- Volcae
- Volcanology
- Vole
- Volga Bulgaria
- Volga Tatars
- Volta potential
- Voltage
- Voltage regulator
- Voltage source
- Voronezh
- Voucher
- Vow
- Voyager 2
- Vrindavan
- Vulcan (mythology)
- Vulgar Latin
- Vulgate
- Växjö
- Vélez-Málaga
- Wadhwan
- Wage
- Waikato
- Walden
- Walgreens
- Walker circulation
- Wallaby
- Walter Damrosch
- Walther von der Vogelweide
- Waltz
- Wanzai, Small Hengqin and Great Hengqin islands
- War dance
- War effort
- War elephant
- War hammer
- War in the Vendée
- War novel
- War of 1812
- War of the Pacific
- Wardrobe
- Wardroom
- Warehouse
- Warez
- Wari culture
- Warington Wilkinson Smyth
- Warora
- Warp and weft
- Warring States period
- Wars of Scottish Independence
- Warsaw Ghetto
- Warsaw Pact invasion of Czechoslovakia
- Warship
- Waru Waru
- Warwick, Virginia
- Washing machine
- Washington (state)
- Washington National Cathedral
- Washington State University
- Washingtonia filifera
- Waste management
- Watch
- Water
- Water bottle
- Water buffalo
- Water cannon
- Water supply
- Watercraft
- Watergate scandal
- Watermelon
- Wattmeter
- Wave function
- Waveguide
- Wavelength-division multiplexing
- Wayne MacVeagh
- Wayzgoose
- Weapon
- Web application
- Webster's Dictionary
- Wedge
- Weed
- Week
- Weekly Shōnen Jump
- Weever
- Weimar Republic
- Weimaraner
- Welfare
- Welland Canal
- Wellington Region
- Welsh language
- Welsh law
- Weregild
- West
- West Frisian language
- West North Central states
- West Nusa Tenggara
- West Papua (province)
- West Siberian Plain
- West Side Story
- West Virginia
- Western (genre)
- Western Digital
- Western Front (World War II)
- Western Ghats
- Western Sahara War
- Western concert flute
- Western culture
- Western fiction
- Western honey bee
- Western world
- Wet wipe
- Wetland
- Whakarewarewa
- Wheat
- Wheatstone bridge
- Wheelchair
- Wheellock
- Whelk
- Where's Wally?
- Whirligig beetle
- White Fathers
- White House
- White Lady
- White-box testing
- Whiteprint
- Who's Afraid of Virginia Woolf?
- Wichita Lineman
- Wien's displacement law
- Wiener Neustadt
- Wiesbaden
- Wiki
- Wild goat
- Wild rice
- Wildlife
- Wilhelm Friedemann Bach
- Wilhelm Hauff
- Wilhelm Röntgen
- Wilhelm Traugott Krug
- Wilhelmina of the Netherlands
- Will and testament
- William Boyd Dawkins
- William Cecil, 1st Baron Burghley
- William Cheselden
- William Ellis Tucker
- William Heberden
- William Hepworth Thompson
- William Huskisson
- William Lamb, 2nd Viscount Melbourne
- William P. Fessenden
- William Phips
- William Roy
- William Stephen Raikes Hodson
- William Tell
- William Thomson, 1st Baron Kelvin
- William Wollaston
- William Wordsworth
- William of Poitiers
- Willow
- Wilmington, Delaware
- Winburg
- Wind instrument
- Windows 95
- Windows API
- Windows Registry
- Wing
- Winter solstice
- Wire
- Wisconsin
- Wisdom
- Wise Observatory
- Wismar
- Witness
- Witten
- Wolfgang Franz von Kobell
- Wolfgang Menzel
- Wood
- Wood drying
- Wood-plastic composite
- Wool
- Wootz steel
- Work (physics)
- Work hardening
- Worker cooperative
- Working class
- Working time
- Workweek and weekend
- World Bank
- World Championship Wrestling
- World Council of Churches
- World egg
- World's Columbian Exposition
- World's fair
- Wrench
- Writ
- Writing system
- Written language
- Wu (state)
- Wu Chinese
- Wudu
- Wuhu
- Wurlitzer
- Wycliffe's Bible
- X Window System
- X-Men
- X-ray
- X-ray spectroscopy
- X-ray telescope
- X86
- XNOR gate
- Xalapa
- Xena: Warrior Princess
- Xi'an Jiaotong University
- Xiamen
- Xiang Chinese
- Xianyang
- Xicheng District
- Xining
- Xinjiang
- Xinxiang
- YMCA
- Yablonoi Mountains
- Yakuza
- Yale University
- Yam (vegetable)
- Yamaguchi Prefecture
- Yamato period
- Yamoussoukro
- Yan'an
- Yangquan
- Yangtze Delta
- Yangzhou
- Yap State
- Yaren District
- Yavatmal
- Year
- Yeast
- Yellow River
- Yellowstone hotspot
- Yemen
- Yemeni unification
- Yeosu
- Yesod
- Yinchuan
- Yiwu
- Yogyakarta
- Yokohama
- Yokosuka
- Yolk
- Yom Kippur
- Yomi
- Yonsei University
- Yorkshire
- Yoruba language
- Yoruba religion
- Young People's Society of Christian Endeavour
- Young Turks
- Yuan dynasty
- Yucatán Peninsula
- Yue (state)
- Yuezhi
- Yugoslavia
- Yugyd Va National Park
- Yukon River
- Yunnan
- Yuzhny Island
- Zacharie Jacob
- Zahedan
- Zambezi, Zambia
- Zambia
- Zambo
- Zamboanga Peninsula
- Zapopan
- Zaporizhzhia
- Zaporizhzhia Oblast
- Zapotec civilization
- Zealand
- Zealandia
- Zebroid
- Zebu
- Zeeland
- Zermelo–Fraenkel set theory
- Zero-day (computing)
- Zeus
- Zhangjiakou
- Zhanjiang
- Zhejiang
- Zhenjiang
- Zhetysu
- Zhob
- Zhongshan
- Zhongyuan
- Zhytomyr
- Zibo
- Zigong
- Ziguinchor
- Zimmermann Telegram
- Zinc chloride
- Zoning
- Zorba the Greek
- Zoroaster
- Zorro
- Zucchini
- Zulu people
- Zwalm
- Zweibrücken
- Zygomycota
- Álvar Núñez Cabeza de Vaca
- Élie Catherine Fréron
- Émile Augier
- Émile Souvestre
- Émile-Justin Menier
- Étienne Dolet
- Étienne Dumont
- Étienne François Geoffroy
- Étienne Jodelle
- Étienne Joseph Louis Garnier-Pagès
- Étienne Maurice Falconet
- Étienne Pasquier
- Étude
- Île-de-France
- Ödön Beöthy
- Ürümqi
- Ōita (city)
- Šabac
- Żary
- Γ-Aminobutyric acid
- Ḥaʼil