2025 Upper Austria Ladies Linz – Singles
| Singles | |
|---|---|
| 2025 Upper Austria Ladies Linz | |
| Champion | Ekaterina Alexandrova |
| Runner-up | Dayana Yastremska |
| Score | 6–2, 3–6, 7–5 |
| Draw | 28 (4 WC, 6 Q) |
| Seeds | 8 |
Ekaterina Alexandrova defeated Dayana Yastremska in the final, 6–2, 3–6, 7–5 to win the singles title at the 2025 Upper Austria Ladies Linz. It was her fifth WTA Tour singles title.
Jeļena Ostapenko was the reigning champion, but did not participate this year.