| Singles | |
|---|---|
| 2009 PTT Thailand Open | |
| Champion |
|
| Runner-up |
|
| Final score | 7–5, 6–3 |
Jo-Wilfried Tsonga was the defending champion, but lost in the semifinals to Viktor Troicki.
Gilles Simon won in the final 7–5, 6–3, against Viktor Troicki.
The top four seeds receive a bye into the second round.