2017 MercedesCup – Singles

Lucas Pouille defeated Feliciano López in the final, 4–6, 7–6(7–5), 6–4 to win the singles tennis title at the 2017 Stuttgart Open. Pouille saved a match point en route to the title, in the second round against Jan-Lennard Struff.

Dominic Thiem was the reigning champion, but chose not to participate this year.

Seeds
The top four seeds receive a bye into the second round. • # Roger Federer (second round)

• #🇧🇬 Grigor Dimitrov (second round)

• #🇨🇿 Tomáš Berdych (quarterfinals)

• #🇫🇷 Lucas Pouille (champion)

• #🇺🇸 Steve Johnson (second round)

• #🇩🇪 Mischa Zverev (semifinals)

• #🇫🇷 Gilles Simon (first round)

• #🇷🇸 Viktor Troicki (first round)

Seeds
• # 🇸🇰 Lukáš Lacko (qualified)

• # 🇧🇪 Ruben Bemelmans (qualifying competition)

• # 🇩🇪 Maximilian Marterer (Received wildcard to main draw)

• # 🇺🇸 Taylor Fritz (first round)

• # 🇩🇪 Peter Gojowczyk (qualified)

• # 🇰🇿 Alexander Bublik (qualifying competition)

• # 🇭🇺 Márton Fucsovics (qualified)

• # 🇫🇷 Vincent Millot (first round)

Qualifiers
• # 🇸🇰 Lukáš Lacko

• # 🇩🇪 Peter Gojowczyk

• # 🇩🇪 Yannick Hanfmann

• # 🇭🇺 Márton Fucsovics