Quah Ting Wen (born 18 August 1992) is a Singaporean professional swimmer who specialises in butterfly, freestyle and individual medley events.

[4] Quah had represented the UCLA Bruins during her time at the University of California, Los Angeles.

[6] At the 2008 Olympic Games, Quah failed to qualify in the heats of the 400m Individual Medley event but set a new national record (4:51.25).

[7] She won three individual gold medals in the 50 m, 100 m and 200 m freestyle events while setting national records for all three (25.43, 55.57 and 1:59.21).

Quah set a new national record in the 200 m freestyle event in the second leg of the 2013 FINA Swimming World Cup, held in Berlin, Germany.