2009 Rijeka Open – Singles

Nicolás Massú was the defending champion.

Paolo Lorenzi won in the final 6–3, 7–6(2), against Blaž Kavčič.

Seeds
• # 🇪🇸 Iván Navarro (second round)

• # 🇫🇷 Mathieu Montcourt (semifinals)

• # Roko Karanušić (second round)

• # 🇪🇸 Rubén Ramírez Hidalgo (first round)

• # 🇦🇺 Peter Luczak (second round)

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

• # 🇦🇷 Sebastián Decoud (first round)

• # Stéphane Bohli (quarterfinals)