The 2020 Thailand Open (also known as the GSB Thailand Open presented by E@ for sponsorship reasons) was a Women's Tennis Association (WTA) tournament played on outdoor hard courts.

It was the 2nd edition of the Hua Hin Championships as part of the WTA International tournaments of the 2020 WTA Tour.

It took place at the True Arena Hua Hin in Hua Hin, Thailand, from 10 February to 16 February 2020.

[1] The following players received wildcards into the singles main draw: The following player received protected rankings into the singles main draw: The following players received entry from the qualifying draw: The following player received entry as a lucky loser: The following pairs received wildcards into the doubles main draw: