| Singles | |
|---|---|
| 2017 Porsche Tennis Grand Prix | |
| Champion |
|
| Runner-up |
|
| Final score | 6–1, 2–6, 7–6(7–5) |
Angelique Kerber was the two-time defending champion, but lost in the second round to Kristina Mladenovic. The tournament marked the return of Maria Sharapova, after serving a 15-month suspension.
Laura Siegemund won the title, defeating Mladenovic in the final, 6–1, 2–6, 7–6(7–5).
The top four seeds receive a bye into the second round.