List of Hot 100 number-one singles of 2021 (Japan)

The following is a list of weekly number-one singles on the Billboard Japan Hot 100 chart in 2021.

Chart history

Issue date	Song	Artist(s)	Ref.
January 4	"Beautiful" (ビューティフル, Byūtifuru)	NEWS	[1]
January 11	"Homura" (炎)	LiSA	[2][3]
January 18
January 25	"Shūkan Umakuikuyōbi" (週刊うまくいく曜日)	Johnny's West	[4]
February 1	"Grandeur"	Snow Man	[5]
February 8	"Boku wa Boku o Suki ni Naru"	Nogizaka46	[6]

See also

• List of Billboard Japan Hot Albums number ones of 2021

References

1. "Billboard Japan Hot 100 2021/1/4". Billboard Japan (in Japanese). Archived from the original on 6 January 2021. Retrieved 6 January 2021.
2. "Billboard Japan Hot 100 2021/1/11". Billboard Japan (in Japanese). Archived from the original on 8 January 2021. Retrieved 8 January 2021.
3. "Billboard Japan Hot 100 2021/1/18". Billboard Japan (in Japanese). Archived from the original on 14 January 2021. Retrieved 14 January 2021.
4. "Billboard Japan Hot 100 2021/1/25". Billboard Japan (in Japanese). Archived from the original on 20 January 2021. Retrieved 20 January 2021.
5. "Billboard Japan Hot 100 2021/2/1". Billboard Japan (in Japanese). Archived from the original on 27 January 2021. Retrieved 27 January 2021.
6. "Billboard Japan Hot 100 2021/2/8". Billboard Japan (in Japanese). Archived from the original on 3 February 2021. Retrieved 3 February 2021.