2009 MercedesCup – Singles

Juan Martín del Potro was the defending champion, but chose not to participate that year.

Jérémy Chardy won in the final 1–6, 6–3, 6–4 against Victor Hănescu.

Seeds
• # 🇫🇷 Gilles Simon (second round)

• # 🇷🇺 Nikolay Davydenko (quarterfinals)

• # 🇨🇿 Tomáš Berdych (first round)

• # 🇷🇴 Victor Hănescu (final)

• # 🇩🇪 Philipp Kohlschreiber (second round)

• # 🇪🇸 Albert Montañés (withdrew)

• # 🇫🇷 Fabrice Santoro (first round)

• # 🇦🇷 José Acasuso (first round)