The 2025 Singapore Tennis Open was a WTA tournament played on indoor hardcourts as part of the 2025 WTA Tour.

The event took place at the Kallang Tennis Hub in Singapore from 27 January through 2 February 2025.

[1] The tournament marked a return of the WTA Tour to Singapore after a seven-year absence since the 2018 WTA Finals.

[2] The following players received wildcards into the singles main draw: The following players received entry from the qualifying draw: