2011 Chang-Sat Bangkok Open – Singles

Grigor Dimitrov was the defending champion, but chose to play in the US Open instead. Cedrik-Marcel Stebe defeated Amir Weintraub 7–5, 6–1 to win the tournament.

Seeds
• # Rik de Voest (first round)

• # 🇩🇪 Rainer Schüttler (second round)

• # 🇷🇺 Teymuraz Gabashvili (second round)

• # 🇬🇧 James Ward (quarterfinals)

• # 🇩🇪 Cedrik-Marcel Stebe (champion)

• # 🇷🇺 Konstantin Kravchuk (semifinals)

• # 🇯🇵 Yuichi Sugita (second round)

• # 🇮🇱 Amir Weintraub (final)