- Source: List of Hot 100 number-one singles of 2019 (Japan)
- Britney Spears
- BTS
- Jennie (penyanyi)
- Nicki Minaj
- Carly Rae Jepsen
- Gwen Stefani
- Tik Tok (lagu)
- One Kiss
- Janet Jackson
- Daftar penghargaan dan nominasi yang diterima oleh BTS
- List of Hot 100 number-one singles of 2019 (Japan)
- List of Billboard Hot 100 chart achievements and milestones
- Billboard Hot 100
- Taylor Swift singles discography
- All I Want for Christmas Is You
- Mariah Carey singles discography
- Madonna singles discography
- Hot Stuff (Donna Summer song)
- BTS singles discography
- Ariana Grande discography
The following is a list of number-one singles on the Billboard Japan Hot 100 chart in 2019.