| 2015 Porsche Tennis Grand Prix | |
|---|---|
| Date | 20–26 April |
| Edition | 38th |
| Draw | 28S / 16D |
| Prize money | $731,000 |
| Surface | Clay |
| Location | Stuttgart, Germany |
| Venue | Porsche-Arena |
| Attendance | 37,200 |
| Champions | |
| Singles | |
 Angelique Kerber | |
| Doubles | |
 Bethanie Mattek-Sands /  Lucie Šafářová | |
The 2015 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor clay courts. It was the 38th edition of the Porsche Tennis Grand Prix, and part of the Premier tournaments of the 2015 WTA Tour. It took place at the Porsche Arena in Stuttgart, Germany, from 20 April through 26 April 2015. Unseeded Angelique Kerber won the singles title.