2011 Intersport Heilbronn Open – Singles

Michael Berrer was the defending champion; however, he lost to 6th seed Daniel Brands in the quarterfinals.

Bastian Knittel defeated Brands in the final, 7–6(4), 7–6(5).

Seeds
• # 🇰🇿 Andrey Golubev (first round)

• # 🇩🇪 Michael Berrer (quarterfinals)

• # 🇩🇪 Tobias Kamke (second round)

• # 🇩🇪 Rainer Schüttler (first round)

• # 🇹🇷 Marsel İlhan (first round)

• # 🇩🇪 Daniel Brands (final)

• # 🇩🇪 Julian Reister (withdrew)

• # Marco Chiudinelli (first round)

• # 🇩🇪 Denis Gremelmayr (first round)