2021 Zavarovalnica Sava Portorož – Singles
| Singles | |
|---|---|
| 2021 Zavarovalnica Sava Portorož | |
| Champion | Jasmine Paolini |
| Runner-up | Alison Riske |
| Score | 7–6(7–4), 6–2 |
| Draw | 32 |
| Seeds | 8 |
Anna Chakvetadze was the champion when the event was last held in 2010, but she retired from professional tennis in 2013.
Jasmine Paolini won her maiden WTA Tour title, defeating Alison Riske in the final, 7–6(7–4), 6–2.