The following is a list of Oricon number-one singles of 2020.
Chart history Issue dateSongArtist(s)January 6"Gattan Gotton Go!"Boys and MenJanuary 13"Inochi no Uta"Mariya TakeuchiJanuary 20"Initial/Yume o Uchinuku Shunkan ni!"Poppin'PartyJanuary 27"Sōyūtoko Aru yo ne?"SKE48February 3"Imitation Rain/D.D."SixTones vs. Snow ManFebruary 10"Mubou na Yume wa Sameru Koto ga Nai"STU48February 17"Imitation Rain/D.D."SixTones vs. Snow ManFebruary 24March 2"Sonna Koto Nai yo"Hinatazaka46March 9"I Am/Muah Muah"Hey! Say! JUMPMarch 16"Protostar"JO1March 23"Brava!! Brava!! Brava!!/Ray of Light"JaejoongMarch 30"Shitsuren, Arigatō"AKB48April 6"Shiawase no Hogoshoku"Nogizaka46April 13"Fallin' Flower"SeventeenApril 20"Movin' On"Sandaime J Soul BrothersApril 27"Ai o Shiru"Last IdolMay 4"3−2"HKT48May 11"The Beyond Gunpla 40th Edition"Luna SeaMay 18"3−2"HKT48May 25"Fly with Me"Millennium ParadeJune 1"Starry Sky"PasscodeJune 8"Mirai wa Onna no Tame ni Aru"WalküreJune 15"Top" (Japanese ver.)Stray KidsJune 22"Mazy Night"King & PrinceJune 29"Kanzai Boya"KinKi KidsJuly 6"Shōko"Johnny's WestJuly 13"Last Mermaid..."Hey! Say! JUMPJuly 20"Fanfare"TwiceJuly 27"Nights Cold"Tomohisa YamashitaAugust 3"Navigator"SixTonesAugust 10"Kite"ArashiAugust 17"Run"Sexy ZoneAugust 24"Smile"Twenty TwentyAugust 31"Re:Live"Kanjani EightSeptember 7"Stargazer"JO1September 14"Omoidaseru Koi wo Shiyō"STU48September 21"Oh Yeah"Boys and MenSeptember 28"Endless Summer"Kis-My-Ft2October 5"It's My Life/Pineapple"V6October 12"Your Song"Hey! Say! JUMPOctober 19"Kissin' My Lips/Stories"Snow ManOctober 26"Homura"LiSANovember 2November 9November 16"Not Found"Sexy ZoneNovember 23"New Era"SixTonesNovember 30"Koi Nanka No Thank You!"NMB48December 7"Seishun 'Subliminal'"=LoveDecember 14"Step and a Step"NiziUDecember 21"Nobody's Fault"Sakurazaka46December 28"I Promise"King & Prince
See also List of Oricon number-one albums of 2020
References