Singapore competed at the 2015 World Aquatics Championships in Kazan, Russia from 24 July to 9 August 2015.

This was the first time Singapore won a medal at the World Aquatics Championship, with Joseph Schooling winning bronze in the Men's 100 m butterfly event.

[1] Singaporean divers qualified for the individual spots and synchronized teams at the World Championships.

The Singaporean team consists of 11 swimmers (five men and six women), all coached by former Spanish breaststroker and 1988 Olympic bronze medalist Sergio Lopez Miro.

[5] Singapore fielded a full squad of eight synchronized swimmers to compete in each of the following events.