Great Britain competed at the 2013 World Aquatics Championships in Barcelona, Spain from 19 July to 4 August 2013.
Great Britain has qualified three high divers.
Great Britain has qualified the following open water swimmers.
Swimmers from Great Britain earned 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): A total of 27 swimmers (16 men and 11 women) were selected to the team.
Great Britain has qualified the following synchronized swimmers.