2015 Western & Southern Open – Men's singles
| Men's singles | |
|---|---|
| 2015 Western & Southern Open | |
| Champion | Roger Federer |
| Runner-up | Novak Djokovic |
| Score | 7–6(7–1), 6–3 |
Defending champion Roger Federer defeated Novak Djokovic in the final, 7–6(7–1), 6–3 to win the men's singles tennis title at the 2015 Cincinnati Masters. He won the title without losing a set or having his serve broken for the second time, after 2012. It marked the first time Federer defeated the world No. 1 and No. 2 players in consecutive matches en route to a title. It was Djokovic's fifth runner-up finish without winning the title; he would eventually do so in 2018.