Canada was scheduled to compete in all six disciplines and its team consisted of 84 athletes (31 men and 53 women).

However, only 83 competed across five disciplines because high diver Lysanne Richard withdrew from competition.

[5][7] To qualify for the team, an athlete had to place in the top two of their event and also meet the a standard time set by FINA.

[9] Canada's synchronized swimming team consisted of 14 athletes (1 male and 13 female).

[14] Canada's men's water polo team qualified for the World Championships with a silver medal performance at the 2017 UANA Cup in Couva, Trinidad and Tobago.