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

Italian divers qualified for the individual spots and the synchronized teams at the World Championships.

[2][1] Italy has nominated eleven swimmers to compete in the open water marathon.

[1][3] Italian 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):[4] Swimmers must qualify at the 2015 Italian Spring Championships and Sette Colli Trophy (for pool events) to confirm their places for the Worlds.

[1][5] Italy fielded a full team of fourteen synchronized swimmers (one man and thirteen women) to compete in each of the following events.