List of Oricon number-one singles of 2003

The following is a list of Oricon number-one singles of 2003.

Oricon Weekly Singles Chart

Issue date	Song	Artist(s)	Ref.
January 6	"Love Me All Over"	J-FRIENDS	[1]
January 13	"UNTITLED 4 BALLADS"	Every Little Thing
January 20	"Chijou no Hoshi"	Miyuki Nakajima
January 27	"Happy Life"	175R
February 3	"Kuki (STEM)"	Ringo Shiina
February 10	"COLORS"	Hikaru Utada
February 17
February 24	"Tsuki no Shizuku"	RUI
March 3	"Asu eno tobira"	I Wish
March 10
March 17	"Sekai ni Hitotsu Dake no Hana"	SMAP
March 24
March 31
April 7	"It's Showtime!"	B'z
April 14	"Sekai ni Hitotsu Dake no Hana"	SMAP
April 21	"Eien no BLOODS"	KinKi Kids
April 28	"Sora ni utaeba"	175R
May 5	"As for One Day"	Morning Musume
May 12	"Sakura"	Naotarō Moriyama
May 19
May 26
June 2	"Super Lover"	w-inds
June 9	"Darling"	V6
June 16	"Hello"	Hyde
June 23	"KI"	Kōshi Inaba
June 30	"Kokoro ni yume o kimi ni wa ai"	KinKi Kids
July 7	"Katte ni Sindbad"	Southern All Stars
July 14	"Cosmic Rescue"	V6
July 21	"&"	Ayumi Hamasuki
July 28	"Yasei no ENERGY"	B'z
August 4	"Namida no umi de dakaretai"	Southern All Stars
August 11
August 18	"Ashita e Kaeru"	Chemistry
August 25	"Hakka Candy"	KinKi Kids
September 1	"Forgiveness"	Ayumi Hamasuki
September 8	"Niji / Himawari / Sore ga Subete sa"	Masaharu Fukuyama
September 15
September 22
September 29
October 6
October 13	"Ambitious Japan!"	Tokio
October 20	"Imitation Gold"	Tak Matsumoto feat. Mai Kuraki
October 27	"Beautiful Dreamer/Street Life"	Glay
November 3	"Hokōsha yūsen"	Yuzu
November 10	"Long Road"	w-inds
November 17	"No way to say"	Ayumi Hamasaki
November 24	"Yumemonogatari"	Tackey & Tsubasa
December 1	"Tenohira"	Mr. Children
December 8
December 15	"Lack"	Porno Graffiti
December 22	"Yorokobi no Uta"	MONGOL800
December 29

References

1. "Archived copy". Archived from the original on 2008-12-26. Retrieved 2008-10-13.