| Champ: |  Fabio Fognini |
| Runner: | Yannick Hanfmann |
| Score: | 6–4, 7–5 |
| Draw: | 28 (4 / 3) |
| Seeds: | 8 |
| Type: | singles doubles |
See main article: article and 2017 Swiss Open Gstaad.
Feliciano López was the defending champion, but lost in the second round to Yannick Hanfmann.
Fabio Fognini won the title, defeating Hanfmann in the final, 6–4, 7–5.
The top four seeds receive a bye into the second round.