2009 Intersport Heilbronn Open – Singles

Evgeny Korolev was the defending champion. He didn't take part in these championships this year.

Benjamin Becker defeated 6–4, 6–4 Karol Beck in the final.

Seeds
• # Lu Yen-hsun (second round)

• # 🇩🇪 Philipp Petzschner (second round)

• # 🇩🇪 Denis Gremelmayr (first round)

• # 🇺🇦 Sergiy Stakhovsky (quarterfinals)

• # 🇫🇷 Arnaud Clément (quarterfinals)

• # Roko Karanušić (withdrew)

• # 🇩🇪 Andreas Beck (second round, retired)

• # 🇩🇪 Björn Phau (first round)