2021 St. Petersburg Ladies' Trophy
| 2021 St. Petersburg Ladies' Trophy | |
|---|---|
| Date | 15 – 21 March |
| Edition | 12th |
| Category | WTA 500 |
| Prize money | $565,530 |
| Surface | Hard (indoor) |
| Location | Saint Petersburg, Russia |
| Venue | Sibur Arena |
| Champions | |
| Singles | |
| Daria Kasatkina | |
| Doubles | |
| Nadiia Kichenok / Raluca Olaru | |
The 2021 St. Petersburg Ladies' Trophy is a professional tennis tournament played on indoor hard courts. It is the 12th edition of the tournament and a WTA 500 tournament on the 2021 WTA Tour. The tournament is held between 15 and 21 March 2021.