Learner Tien defeated Mariano Navone in the final, 3–6, 6–3, 7–5 to win the singles title at the 2026 Geneva Open. It was his second ATP Tour title and his first on clay courts.
Novak Djokovic was the reigning champion, but did not participate this year.
Contents
Seeds
The top four seeds received a bye into the second round.
Draw
Key