- Source: List of Oricon number-one singles of 2021
- BTS
- Diskografi 2PM
- Lana Del Rey
- Jay Chou
- Girls' Generation
- Diskografi Blackpink
- Dua Lipa (album)
- Diskografi Astro
- Super Junior
- Diskografi Dreamcatcher
- List of Oricon number-one singles of 2021
- List of Oricon number-one singles
- List of Oricon number-one singles of 1991
- List of Oricon number-one singles of 1990
- List of Oricon number-one albums
- List of Oricon number-one singles of 2022
- List of Oricon number-one albums of 2021
- List of Oricon number-one singles of 1992
- List of Oricon number-one singles of 1993
- BTS singles discography
The following is a list of Oricon number-one singles of 2021.
Chart history
See also
List of Oricon number-one albums of 2021