| 2011 PTT Pattaya Open | |
|---|---|
| Date | 6–13 February |
| Edition | 20th |
| Category | International |
| Surface | Hard / Outdoor |
| Location | Pattaya, Thailand |
| Champions | |
| Singles | |
 Daniela Hantuchová | |
| Doubles | |
 Sara Errani / Roberta Vinci | |
The 2011 PTT Pattaya Open was a women's professional tennis tournament played on outdoor hard courts. It was the 20th edition of the PTT Pattaya Open (formerly known as the Pattaya Women's Open) and was part of the International category on the 2011 WTA Tour. It took place at Dusit Thani Hotel in Pattaya, Thailand from February 6 through February 13, 2011.