2015 ATP World Tour Finals – Singles
| Singles | |
|---|---|
| 2015 ATP World Tour Finals | |
| Champion | Novak Djokovic |
| Runner-up | Roger Federer |
| Score | 6–3, 6–4 |
Three-time defending champion Novak Djokovic defeated Roger Federer in the final, 6–3, 6–4 to win the singles tennis title at the 2015 ATP Finals. It was his fifth Tour Finals title. With the win, Djokovic became the first player to win the event four consecutive times.