Open Internacional de San Sebastián
| Open Internacional de San Sebastián | |
|---|---|
 2025 Open Internacional de San Sebastián | |
| WTA 125K series | |
| Event name | Open Internacional de San Sebastián |
| Location | San Sebastián, Spain |
| Venue | Real Club Tenis de San Sebastián |
| Category | WTA 125 |
| Surface | Clay / Outdoor |
| Draw | 32S/16Q/8D |
| Prize money | $115,000 |
| Website | https://openinternacionalsansebastian.com |
| Current champions (2025) | |
| Singles |  Oksana Selekhmeteva |
| Doubles | Anastasia Tikhonova  Tara Würth |
The Open Internacional de San Sebastián is a professional women's tennis tournament played on outdoor clay courts in San Sebastián, Spain. The event was originally part of the ITF Women's World Tennis Tour, classified as a $60,000 ITF tournament and first held in 2022.
In 2025, the tournament returned as a WTA 125 event, becoming the first WTA tournament ever held in the Basque Country.
Past finals
Singles
| Year | Champion | Runner-up | Score |
|---|---|---|---|
| 2022 |  Julia Grabher |
 Aliona Bolsova |
6–3, 7–6(7–3) |
| 2023 - 2024 |
Not Held | ||
| ↓ WTA 125 event ↓ | |||
| 2025 | Oksana Selekhmeteva |
 Anouk Koevermans |
6–0, 6–4 |
Doubles
| Year | Champions | Runners-up | Score |
|---|---|---|---|
| 2022 | Aliona Bolsova  Katarina Zavatska |
Ángela Fita Boluda Guiomar Maristany |
1–2 ret. |
| 2023 - 2024 |
Not Held | ||
| ↓ WTA 125 event ↓ | |||
| 2025 | Anastasia Tikhonova Tara Würth |
 Elvina Kalieva  Gabriela Lee |
6–3, 6–0 |