A synchronized swimming competition was held at the 1998 World Aquatics Championships, in Perth, Western Australia between 8 and 17 January 1998.
[2] Olga Sedakova became only the fourth woman to win a gold medal in every discipline at the same championships, following Teresa Andersen in the first World Aquatics Championships in 1973, Carolyn Waldo in 1986, and Becky Dyroen-Lancer at the previous competition in 1994.
[3] North America had their worst showing ever at the World Aquatics Championships, Canada did not win any medals in synchronised swimming for the first time ever.
Japan had two multiple winners; Miya Tachibana won bronze in the solo, and silver with partner Miho Takeda in both the duet and team competitions.
For France Virginie Dedieu won a silver in the solo competition, and a bronze in the duet.