List of Oricon number-one singles of 1975

The highest-selling singles in Japan are ranked in the Oricon Singles Chart, which is published by Oricon Style magazine. The data are compiled by Oricon based on each single's physical sales. This list includes the singles that reached the number one place on that chart in 1975.

Oricon Weekly Singles Chart

Issue date	Song	Artist(s)	Ref.
January 6	"Fuyu no Iro"	Momoe Yamaguchi
January 13
January 20
January 27
February 3	"Hajimete no Dekigoto"	Junko Sakurada
February 10	"Shitetsu Ensen"	Goro Noguchi
February 17
February 24
March 3	"22-sai no Wakare"	Kaze
March 10
March 17
March 24
March 31	"Waga Yoki Tomoyo"	Hiroshi Kamayatsu
April 7
April 14
April 21
April 28	"Showa Kare Susuki"	Sakura & Ichiro
May 5
May 12
May 19	"Cyclamen no Kaori"	Akira Fuse
May 26
June 2
June 9
June 16
June 23	"Kakkoman Boogie / Minato no Yoko Yokohama Yokosuka"	Down Town Boogie Woogie Band
June 30
July 7
July 14
July 21
July 28	"Kokoro Nokori"	Takashi Hosokawa
August 4
August 11
August 18
August 25	"Omoide Makura"	Kyoko Kosaka
September 1	"Romance"	Hiromi Iwasaki
September 8
September 15
September 22	"Toki no Sugiyuku Mama ni"	Kenji Sawada
September 29
October 6
October 13
October 20
October 27	"Ichigo Hakusho wo Mou Ichido"	Bang Bang
November 3
November 10
November 17
November 24
December 1
December 8	"Sentimental"	Hiromi Iwasaki
December 15
December 22	"Ano Hi ni Kaeritai"	Yumi Arai
December 29