2010 Rijeka Open – Singles

Paolo Lorenzi unsuccessfully defended his title, and was eliminated by Antonio Veić in the first round.

Blaž Kavčič won the tournament, defeating Rubén Ramírez Hidalgo 6–4, 3–6, 7–6(5) in the final.

Seeds
• # 🇪🇸 Rubén Ramírez Hidalgo (final)

• # 🇦🇷 Carlos Berlocq (semifinals)

• # 🇮🇹 Paolo Lorenzi (first round)

• # Grega Žemlja (semifinals)

• # Blaž Kavčič (champion)

• # 🇦🇹 Daniel Köllerer (first round)

• # 🇩🇪 Dieter Kindlmann (second round)

• # Franko Škugor (second round)