2012 ATP World Tour Finals – Singles
| Singles | |
|---|---|
| 2012 ATP World Tour Finals | |
| Champion | Novak Djokovic |
| Runner-up | Roger Federer |
| Score | 7–6(8–6), 7–5 |
Novak Djokovic defeated the two-time defending champion Roger Federer in the final, 7–6(8–6), 7–5 to win the singles tennis title at the 2012 ATP World Tour Finals. It was his second Tour Finals title.
Janko Tipsarević made his debut as a direct qualifier, after playing two matches as an alternate in 2011.