2015 St. Petersburg Open
 |
| 2015 St. Petersburg Open | |
|---|---|
| Date | September 21 – 27 |
| 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 | |
The 2015 St. Petersburg Open was a tennis tournament played on indoor hard courts. It was the 20th edition of the St. Petersburg Open, and part of the ATP World Tour 250 Series of the 2015 ATP World Tour. It took place at the Sibur Arena in Saint Petersburg, Russia, from September 21 through 27, 2015.
Singles main draw entrants
Seeds
| 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 |
- 1 Rankings are as of September 14, 2015
Other entrants
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Withdrawals
- Before the tournament
Pablo Andújar →replaced by Ernests Gulbis
Doubles main draw entrants
Seeds
| 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 |
- Rankings are as of September 14, 2015
Other entrants
The following pairs received wildcards into the doubles main draw:
Champions
Singles
Milos Raonic def. 
João Sousa, 6–3, 3–6, 6–3
Doubles
Treat Huey / 
Henri Kontinen def. 
Julian Knowle / Alexander Peya, 7–5, 6–3