| 2015 MercedesCup | |
|---|---|
| Date | 8–14 June |
| Edition | 38th |
| Category | ATP World Tour 250 series |
| Draw | 28S / 16D |
| Prize money | €574,965 |
| Surface | Grass |
| Location | Stuttgart, Germany |
| Venue | Tennis Club Weissenhof |
| Champions | |
| Singles | |
 Rafael Nadal[1] | |
| Doubles | |
 Rohan Bopanna /  Florin Mergea[2] | |
The 2015 MercedesCup was a men's tennis tournament played on grass courts. It was the 38th edition of the Stuttgart Open, and part of the ATP World Tour 250 series of the 2015 ATP World Tour. It was held at the Tennis Club Weissenhof in Stuttgart, Germany, from 8 June until 14 June 2015. This was the first year that the tournament was held on grass courts. First-seeded Rafael Nadal won the singles title.
- ^ "2015 Stuttgart Outdoor – Singles draw". Association of Tennis Professionals (ATP).
- ^ "2015 Stuttgart Outdoor – Doubles draw". Association of Tennis Professionals (ATP).