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

Austrian divers qualified for the individual spots at the World Championships.

[1][2] Austria has qualified one swimmer compete in the open water marathon.

[1][3] Austrian 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):[1][4] Austria has qualified three synchronized swimmers for the following events.

[1]