Com

Com or COM may refer to:

Computing

COM (hardware interface), a serial port interface on IBM PC-compatible computers
COM file, or .com file, short for "command", a file extension for an executable file in MS-DOS
.com, an Internet top-level domain, originally short for "commercial"
Component Object Model, a Microsoft software interface technology
Computer-on-module, a type of single-board computer

Comair (United States), an airline which was a wholly owned subsidiary of Delta Air Lines by ICAO airline designator
Commonwealth MRT station, a Mass Rapid Transit station in Singapore by MRT station abbreviation

Calcium oxalate monohydrate, the mineral whewellite and a common component of kidney stones
COM (manga magazine)
Cốm, green rice dish in Vietnam
Common rail (electricity), a common path of currents in an electronic circuit, often for the ground
Center of mass
Center-of-momentum frame
Coma Berenices (constellation), standard astronomical abbreviation
Comoros, ISO 3166-1 alpha-3 country code
College of Marin, a community college in Marin County, California
College of the Mainland, a community college in Texas City, Texas
Collectivité d'outre-mer, a French overseas collectivity, or first-order administrative division
Concerned Officers Movement, anti-war organization
Commander of the Order of Merit of the Police Forces, Canadian decoration post-nominal letters
Either of two figures named Com in the Book of Mormon: an early Jaredite king, son of Coriantum; and a late Jaredite king
Como, a city and comune in Lombardy, Italy, in Romansh language