| 2009 St. Petersburg Open | |
|---|---|
| Date | 25 October – 1 November |
| Edition | 15th |
| Category | ATP World Tour 250 Series |
| Draw | 32S / 16D |
| Prize money | $663,750 |
| Surface | Hard / indoor |
| Location | St. Petersburg, Russia |
| Venue | Petersburg Sports and Concert Complex |
| Champions | |
| Singles | |
 Sergiy Stakhovsky | |
| Doubles | |
 Colin Fleming / Ken Skupski | |
The 2009 St. Petersburg Open was a tennis tournament played on indoor hard courts. It was the 15th edition of the St. Petersburg Open, and was part of the ATP World Tour 250 Series of the 2009 ATP World Tour. It was held at the Petersburg Sports and Concert Complex in Saint Petersburg, Russia, from October 25 through November 1, 2009.