| 2015 St. Petersburg Open | |
|---|---|
| Date | 21–27 September |
| Edition | 20th |
| Category | ATP World Tour 250 Series |
| Surface | Hard |
| Location | St. Petersburg, Russia |
| Venue | Sibur Arena |
| Champions | |
| Singles | |
 Milos Raonic | |
| Doubles | |
 Treat Huey / Henri Kontinen | |
The2015 St. Petersburg Open was atennis tournament played on indoorhard courts. It was the 20th edition of theSt. Petersburg Open, and part of theATP World Tour 250 Series of the2015 ATP World Tour. It took place at theSibur Arena inSaint Petersburg, Russia, from September 21 through 27, 2015.[1]
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 CZE | Tomáš Berdych | 5 | 1 |
| CAN | Milos Raonic | 9 | 2 |
 AUT | Dominic Thiem | 20 | 3 |
 ESP | Roberto Bautista Agut | 22 | 4 |
| ESP | Tommy Robredo | 27 | 5 |
 FRA | Benoît Paire | 32 | 6 |
 POR | João Sousa | 48 | 7 |
 KAZ | Mikhail Kukushkin | 49 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Pablo Andújar →replaced byErnests Gulbis| Country | Player | Country | Player | Rank1 | Seed |
|---|---|---|---|---|---|
| PHI | Treat Huey | FIN | Henri Kontinen | 76 | 1 |
| AUT | Julian Knowle | AUT | Alexander Peya | 76 | 2 |
 POL | Mariusz Fyrstenberg |  MEX | Santiago González | 108 | 3 |
| AUT | Philipp Oswald | CAN | Adil Shamasdin | 118 | 4 |
The following pairs received wildcards into the doubles main draw:
Milos Raonic defeatedJoão Sousa, 6–3, 3–6, 6–3Treat Huey /Henri Kontinen defeatedJulian Knowle /Alexander Peya, 7–5, 6–3
