The 2013 PTT Thailand Open was a men's tennis tournament played on indoor hard courts. It was the 11th and last edition of the Thailand Open, and part of the ATP World Tour 250 Series of the 2013 ATP World Tour. It took place at the Impact Arena in Bangkok, Thailand, from 21 September through 29 September 2013. Third-seeded Milos Raonic won the singles title.
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following pairs received wildcards into the doubles main draw: