2012 Chang-Sat Bangkok Open – Singles

Cedrik-Marcel Stebe was the defending champion but chose to participate at the 2012 US Open instead. Dudi Sela won the final 6–1, 7–5 against Yuichi Sugita.

Seeds
• # 🇮🇱 Dudi Sela (champion)

• # 🇹🇭 Danai Udomchoke (first round)

• # 🇯🇵 Yuichi Sugita (final)

• # 🇨🇳 Zhang Ze (quarterfinals)

• # 🇮🇱 Amir Weintraub (second round)

• # Chen Ti (first round)

• # 🇬🇧 James Ward (second round)

• # 🇫🇮 Harri Heliövaara (first round)