The following is a list of number-one singles on the Billboard Japan Hot 100 chart in 2020.
Chart history
Issue dateSongArtist(s)Ref.January 6"Pretender"Official Hige DandismJanuary 13January 20January 27"Sōyūtoko Aru yo ne?"SKE48February 3"Imitation Rain"SixTonesFebruary 10"Mubō na Yume wa Sameru Koto ga Nai"STU48February 17"I Love..."Official Hige DandismFebruary 24March 2"Sonna Koto Nai yo"Hinatazaka46March 9"I Am"Hey! Say! JUMPMarch 16"Infinity"JO1March 23"I Love..."Official Hige DandismMarch 30"Shitsuren, Arigatō"AKB48April 6"Shiawase no Hogoshoku"Nogizaka46April 13"Fallin' Flower"SeventeenApril 20"I Love..."Official Hige DandismApril 27May 4"3-2"HKT48May 11"I Love..."Official Hige DandismMay 18May 25"Kōsui"EitoJune 1"Yoru ni Kakeru"YoasobiJune 8June 15June 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"Yoru ni Kakeru"YoasobiAugust 3"Navigator"SixTonesAugust 10"Kite"ArashiAugust 17"Run"Sexy ZoneAugust 24"Smile"Twenty★TwentyAugust 31"Re:Live"Kanjani EightSeptember 7"Oh-Eh-Oh"JO1September 14"Omoidaseru Koi wo Shiyō"STU48September 21"Yoru ni Kakeru"YoasobiSeptember 28"Endless Summer"Kis-My-Ft2October 5"Yoru ni Kakeru"YoasobiOctober 12"Your Song"Hey! Say! JUMPOctober 19"Kissin' My Lips"Snow ManOctober 26"Homura"LiSANovember 2November 9November 16November 23"New Era"SixTonesNovember 30"Homura"LiSADecember 7December 14"Step and a Step"NiziUDecember 21"Nobody's Fault"Sakurazaka46December 28"I Promise"King & Prince
References