Canada competed at the 2013 World Aquatics Championships in Barcelona, Spain between 19 July to 4 August 2013.

[1] Canada qualified 1 high diver.

[2] Canada qualified 5 open water swimmers.

[3] Canadian swimmers 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):[4][5] Canada qualified 12 synchronized swimmers.

[6] * Reserves Canada qualified a men's team.