| Champ: |  Roberto Bautista Agut |
| Runner: |  Lukáš Rosol |
| Score: | 6–3, 4–6, 6–2 |
| Draw: | 28 |
| Seeds: | 8 |
| Type: | singles doubles |
| Main Name: | Stuttgart Open |
See main article: 2014 MercedesCup. Fabio Fognini was the defending champion, but lost in the semifinals to Roberto Bautista Agut.
Bautista Agut went on to win the title, defeating Lukáš Rosol in the final, 6–3, 4–6, 6–2.[1]
The top four seeds receive a bye into the second round.
See also: 1. 
Fabio Fognini (semifinals)
See also: 2. 
Mikhail Youzhny (semifinals)
See also: 3. Roberto Bautista Agut (champion)
See also: 4. Feliciano López (quarterfinals)
See also: 5. Philipp Kohlschreiber (second round)
See also: 6. Guillermo García López (quarterfinals)
See also: 7. 
Santiago Giraldo (quarterfinals)
See also: 8. 
Federico Delbonis (quarterfinals)
See also: 1. Facundo Bagnis (first round)
See also: 2. Marco Cecchinato (qualified)
See also: 3. 
Marsel İlhan (second round)
See also: 4. Gastão Elias (first round)
See also: 5. Mate Delić (qualified)
See also: 6. 
Louk Sorensen (qualifying competition, Lucky loser)
See also: 7. Yann Marti (qualified)
See also: 8. Matthias Bachinger (first round)