2012 St. Petersburg Open – Singles
| Singles | |
|---|---|
| 2012 St. Petersburg Open | |
| Champion | Martin Kližan |
| Runner-up | Fabio Fognini |
| Score | 6–2, 6–3 |
| Draw | 32 |
| Seeds | 8 |
Marin Čilić was the defending champion but chose not to compete.
Martin Kližan won his first ATP World Tour title by defeating Fabio Fognini in the final, 6–2, 6–3.