Greece competed at the 2015 World Aquatics Championships in Kazan, Russia from 24 July to 9 August 2015.
Greek divers qualified for the individual spots at the World Championships.
Greece has nominated four swimmers to compete in the open water marathon. Among the official roster featured four-time Olympians Marianna Lymperta and defending World champion Spyridon Gianniotis in the 10 km open water.
Greek swimmers have achieved qualifying standards in the following events (up to a maximum of 2 swimmers in each event at the A-standard entry time, and 1 at the B-standard):
Greece fielded a full team of twelve synchronized swimmers to compete in each of the following events.