| 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] | ||||
| ||||
The2015 MercedesCup was a men'stennis tournament played ongrass courts. It was the 38th edition of theStuttgart Open, and part of theATP World Tour 250 series of the2015 ATP World Tour. It was held at theTennis Club Weissenhof inStuttgart, Germany, from 8 June until 14 June 2015. This was the first year that the tournament was held on grass courts. First-seededRafael Nadal won the singles title.
Rafael Nadal defeated
Viktor Troicki, 7–6(7–3), 6–3Rohan Bopanna /Florin Mergea defeated
Alexander Peya /
Bruno Soares, 5–7, 6–2, [10–7]| Country | Player | Rank1 | Seed |
|---|---|---|---|
| ESP | Rafael Nadal | 7 | 1 |
 CRO | Marin Čilić | 10 | 2 |
| ESP | Feliciano López | 12 | 3 |
 FRA | Gaël Monfils | 14 | 4 |
 AUS | Bernard Tomic | 26 | 5 |
 GER | Philipp Kohlschreiber | 28 | 6 |
| AUT | Dominic Thiem | 31 | 7 |
| SRB | Viktor Troicki | 33 | 8 |
The following players receivedwildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
Julien Benneteau →replaced byJan-Lennard Struff
Radek Štěpánek →replaced byMatthias BachingerJiří Veselý →replaced bySam Groth
Sergiy Stakhovsky (back injury)| Country | Player | Country | Player | Rank1 | Seed |
|---|---|---|---|---|---|
 USA | USA | ||||
 POL | Marcin Matkowski | SRB | Nenad Zimonjić | 33 | 2 |
| AUT | Alexander Peya | BRA | Bruno Soares | 33 | 3 |
| IND | Rohan Bopanna | ROU | Florin Mergea | 34 | 4 |
 COL | Juan Sebastián Cabal | COL | Robert Farah | 61 | 5 |
The following pairs received wildcards into the doubles main draw:
The following pairs received entry as alternates:
Mike Bryan (stomach pain)Sergiy Stakhovsky (back injury)Radek Štěpánek (back injury)Robert Farah (wrist injury)Rafael Nadal (fatigue)