| 2012 Chang-Sat Bangkok Open | |
|---|---|
| Date | 27 August – 2 September |
| Edition | 4th |
| Surface | Hard |
| Location | Bangkok, Thailand |
| Champions | |
| Singles | |
 Dudi Sela | |
| Doubles | |
 Divij Sharan / Vishnu Vardhan | |
The 2012 Chang-Sat Bangkok Open was a professional tennis tournament played on hard courts. It was the fourth edition of the tournament which was part of the 2012 ATP Challenger Tour. It took place in Bangkok, Thailand between 27 August and 2 September 2012.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| ISR | Dudi Sela | 110 | 1 |
 THA | Danai Udomchoke | 151 | 2 |
 JPN | Yūichi Sugita | 165 | 3 |
 CHN | Zhang Ze | 171 | 4 |
| ISR | Amir Weintraub | 202 | 5 |
 TPE | Chen Ti | 241 | 6 |
 GBR | James Ward | 250 | 7 |
 FIN | Harri Heliövaara | 252 | 8 |
The following players received wildcards into the singles main draw:
Kong Pop Lertchai Peerakiat Siriluethaiwattana Warit Sornbutnark Kittipong Wachiramanowong The following players received entry from the qualifying draw:
Jeong Suk-young 
Christopher Rungkat Harel Srugo Kento Takeuchi Dudi Sela def. Yūichi Sugita, 6–1, 7–5 Divij Sharan / Vishnu Vardhan def. Lee Hsin-han / Peng Hsien-yin, 6–3, 6–4