2011 Banja Luka Challenger – Singles

Marsel İlhan was the defending champion but decided not to participate.

2nd seed Blaž Kavčič claimed the title, defeating 1st seed Pere Riba 6–4, 6–1 in the final.

Seeds
• # 🇪🇸 Pere Riba (final)

• # 🇸🇮 Blaž Kavčič (champion)

• # 🇪🇸 Daniel Gimeno-Traver (semifinals)

• # 🇮🇹 Flavio Cipolla (second round)

• # 🇸🇮 Grega Žemlja (first round)

• # 🇨🇿 Jaroslav Pospíšil (first round)

• # 🇪🇸 Rubén Ramírez Hidalgo (second round)

• # 🇪🇸 Pablo Carreño-Busta (quarterfinals)