2015 Rakuten Japan Open Tennis Championships – Singles
| Singles | |
|---|---|
| 2015 Rakuten Japan Open Tennis Championships | |
| Champion | Stan Wawrinka |
| Runner-up | Benoît Paire |
| Score | 6–2, 6–4 |
| Draw | 32 (4Q / 3WC) |
| Seeds | 8 |
Kei Nishikori was the defending champion, but lost to Benoît Paire in the semifinals.
Stan Wawrinka won the title, defeating Paire in the final, 6–2, 6–4.