Synchronized swimming was contested from December 13 to December 15 at the 1998 Asian Games in Thammasat Aquatic Center, Bangkok, Thailand.

A total of 16 athletes from seven nations competed in the event, Japan won both gold medals, South Korea won both silver medals and China won all bronze medals.

A total of 16 athletes from 7 nations competed in synchronized swimming at the 1998 Asian Games: