2011 Busan Open Challenger Tennis – Singles

Lim Yong-kyu was the defending champion, but lost to Greg Jones in the 2nd round.

Dudi Sela defeated Tatsuma Ito 6–2, 6–7(5), 6–3 in the final match.

Seeds
• # Lu Yen-hsun (semifinals)

• # 🇯🇵 Go Soeda (semifinals)

• # 🇯🇵 Tatsuma Ito (final)

• # 🇮🇱 Dudi Sela (champion)

• # 🇦🇺 Matthew Ebden (second round)

• # 🇯🇵 Yuichi Sugita (quarterfinals)

• # 🇹🇭 Danai Udomchoke (second round)

• # 🇩🇪 Andre Begemann (first round)