The following is a list of Oricon number-one singles of 2004.
Oricon Weekly Singles Chart Issue dateSongArtist(s)Ref.January 5No chart data availableJanuary 12"Sekai ni Hitotsu Dake no Hana"SMAPJanuary 19"Star Gazer"SpitzJanuary 26"Toki no Shizuku"GlayFebruary 2"READY STEADY GO"L'arc-en-CielFebruary 9"One Day, One Dream"Tackey & TsubasaFebruary 16"PIKA☆☆NCHI DOUBLE"ArashiFebruary 23"Michishirube ~a road home~"Orange RangeMarch 1"Hitomi no Juunin"L'arc-en-CielMarch 8"Wonderful Life"&GMarch 15"Subete ga Boku no Chikara ni Naru!"KuzuMarch 22"Arigatou no Uta"V6March 29"Moments"Ayumi HamasakiApril 5April 12"Aja"Southern All StarsApril 19"Dareka no Negai ga Kanau Koro"Hikaru UtadaApril 26May 3"Banzai"B'zMay 10"Kibou: Yell"NEWSMay 17"Tenshi no Wakemae"GlayMay 24"Sign"Mr. ChildrenMay 31"Jiyuu e no Shoutai"L'arc-en-CielJune 7"Waver"Domoto TsuyoshiJune 14"Locolotion"Orange RangeJune 21June 28"Real World"ExileJuly 5"Only Lonely Glory"Bump of ChickenJuly 12"Wonderland"Koshi InabaJuly 19"Kimi Koso Star da"Southern All StarsJuly 26"Inspire"Ayumi HamasakiAugust 2"Blue Jean"GlayAugust 9"Akaku Moyuru Taiyou"NEWSAugust 16"Hitomi no Naka no Galaxy"ArashiAugust 23"Chest"Orange RangeAugust 30"Arigato"B'zSeptember 6"Mickey"Gorie with Jasmine & JoannSeptember 13September 20"Naniwa Iroha Bushi"Kanjani8September 27"Carols"Ayumi HamasakiOctober 4"Omoi ga Kasanaru Sono Mae ni..."Ken HiraiOctober 11October 18"Hana"Orange RangeOctober 25November 1November 8"108.681"TM RevolutionNovember 15"Hana"Orange RangeNovember 22"Ai to Yokubou no Hibi"Southern All StarsNovember 29"Naitari Shinaide / Red x Bue"Masaharu FukuyamaDecember 6"White Road"GlayDecember 13"Koibumi / Good Night"Every Little ThingDecember 20"Anniversary"KinKi KidsDecember 27
References