2015 German Open – Singles

Leonardo Mayer was the defending champion, but chose not to participate this year.

Rafael Nadal won the title, defeating Fabio Fognini in the final 7–5, 7–5.

Seeds
• #🇪🇸 Rafael Nadal (champion)

• #🇪🇸 Tommy Robredo (second round)

• #🇪🇸 Roberto Bautista Agut (second round)

• #🇮🇹 Andreas Seppi (semifinals)

• # Pablo Cuevas (quarterfinals)

• #🇦🇷 Juan Mónaco (second round)

• #🇪🇸 Guillermo García-López (first round, retired)

• #🇮🇹 Fabio Fognini (final)

Seeds
• # 🇫🇷 Lucas Pouille (qualified)

• # 🇮🇹 Marco Cecchinato (first round)

• # 🇧🇦 Damir Džumhur (first round)

• # 🇪🇸 Albert Montañés (qualified)

• # 🇩🇪 Matthias Bachinger (first round)

• # 🇩🇪 Jan-Lennard Struff (first round)

• # 🇯🇵 Taro Daniel (qualified)

• # 🇪🇸 Daniel Muñoz de la Nava (first round)

Qualifiers
• # 🇫🇷 Lucas Pouille

• # 🇯🇵 Taro Daniel

• # 🇪🇸 Íñigo Cervantes

• # 🇪🇸 Albert Montañés