2021 Swiss Open Gstaad – Doubles
| Doubles | |
|---|---|
| 2021 Swiss Open Gstaad | |
| Champions | Marc-Andrea Hüsler Dominic Stricker |
| Runners-up | Szymon Walków Jan Zieliński |
| Score | 6–1, 7–6(9–7) |
Sander Gillé and Joran Vliegen were the reigning champions from when the tournament was last held in 2019, but chose not to participate this year.
Marc-Andrea Hüsler and Dominic Stricker won the title, defeating Szymon Walków and Jan Zieliński in the final, 6–1, 7–6(9–7).