2021 Bol Open – Singles
| Singles | |
|---|---|
| 2021 Bol Open | |
| Champion | Jasmine Paolini |
| Runner-up | Arantxa Rus |
| Score | 6–2, 7–6(7–4) |
Tamara Zidanšek was the two-time defending champion, having won the last edition in 2019, however she was unable to defend her title as she was still competing at the 2021 French Open, reaching the semi-final of the Grand Slam.
Jasmine Paolini won the title, defeating Arantxa Rus in the final, 6–2, 7–6(7–4).