The 2012 PTT Pattaya Open was a women's professional tennis tournament played on outdoor hard courts. It was the 21st edition of the PTT Pattaya Open and was part of the International category on the 2012 WTA Tour. It took place at the Dusit Thani Hotel in Pattaya City, Thailand from February 5 through February 12, 2012. Daniela Hantuchová won the singles title.
Daniela Hantuchová defeated Maria Kirilenko, 6–7(4–7), 6–3, 6–3
- It was Hantuchova's 1st title of the year and 5th of her career. She successfully defended her title.
Sania Mirza / Anastasia Rodionova defeated Chan Hao-ching / Chan Yung-jan, 3–6, 6–1, [10–8]
Singles main draw entrants
- 1 Rankings as of January 30, 2012
The following players received wildcards into the main draw:
The following players received entry from the qualifying draw:
Doubles main draw entrants
- 1 Rankings are as of January 30, 2012