2017 Porsche Tennis Grand Prix – Singles
| Singles | |
|---|---|
| 2017 Porsche Tennis Grand Prix | |
| Champion | Laura Siegemund |
| Runner-up | Kristina Mladenovic |
| Score | 6–1, 2–6, 7–6(7–5) |
| Draw | 28 |
| Seeds | 8 |
Angelique Kerber was the two-time defending champion, but she lost in the second round to Kristina Mladenovic.
Laura Siegemund won the title, defeating Mladenovic in the final, 6–1, 2–6, 7–6(7–5).
As a result of Kerber's loss, Serena Williams regained the world No. 1 ranking, despite being on pregnancy leave. This tournament also marked the return of Maria Sharapova to the WTA Tour, after serving a 15-month suspension for doping offences.