2012 Banja Luka Challenger – Singles

Blaž Kavčič was the defending champion, but retired from his first round match with a back injury. Victor Hănescu won the title, defeating Andreas Haider-Maurer 6–4, 6–1 in the final.

Seeds
• # 🇸🇮 Blaž Kavčič (first round, retired because of a back injury)

• # 🇩🇪 Björn Phau (second round, withdrew because of a back injury)

• # 🇷🇴 Victor Hănescu (champion)

• # Antonio Veić (second round)

• # 🇷🇸 Dušan Lajović (second round)

• # 🇫🇷 Jonathan Dasnières de Veigy (first round)

• # 🇦🇹 Andreas Haider-Maurer (final)

• # 🇸🇰 Pavol Červenák (first round)