2009 St. Petersburg Open – Singles

Andy Murray was the defending champion, but he chose not to compete this year.

Sergiy Stakhovsky won in the final over Horacio Zeballos 2–6, 7–6(10–8), 7–6(9–7).

Seeds
• # 🇷🇺 Mikhail Youzhny (second round, retired because of a lower back injury)

• # 🇷🇴 Victor Hănescu (quarterfinals)

• # 🇷🇸 Viktor Troicki (first round)

• # 🇫🇷 Jérémy Chardy (second round)

• # 🇷🇺 Igor Andreev (second round, retired because of a left knee injury)

• # 🇷🇺 Evgeny Korolev (first round)

• # Pablo Cuevas (first round)

• # 🇦🇷 Horacio Zeballos (final)