2026 Ostrava Open – Singles
| Singles | |
|---|---|
| 2026 Ostrava Open | |
| Champion | Katie Boulter |
| Runner-up | Tamara Korpatsch |
| Score | 5–7, 6–2, 6–1 |
| Draw | 30 (4 WC, 4 Q) |
| Seeds | 8 |
Katie Boulter defeated Tamara Korpatsch in the final, 5–7, 6–2, 6–1 to win the singles tennis title at the 2026 Ostrava Open. It was her fourth WTA Tour title.
Barbora Krejčíková was the reigning champion from when the event was last held in 2022, but she did not participate this year.