2015 St. Petersburg Open – Singles
| Singles | |
|---|---|
| 2015 St. Petersburg Open | |
| Champion | Milos Raonic |
| Runner-up | João Sousa |
| Score | 6–3, 3–6, 6–3 |
| Draw | 28 |
| Seeds | 8 |
Ernests Gulbis won the last edition of the tournament held in 2013, but lost in the first round to Marcos Baghdatis.
Milos Raonic won the title, defeating João Sousa in the final, 6–3, 3–6, 6–3.