Brazil has entered 6 divers (two male and four female).

[1] Brazil qualified one male and one female high divers.

[2] Brazil has entered six open water swimmers[3][4] Brazilian swimmers have so far achieved qualifying standards in the following events (up to a maximum of 2 swimmers in each event at the Olympic Qualifying Time (OQT), and potentially 1 at the Olympic Selection Time (OST)):[5] A total of 16 swimmers, 13 men and 3 women, were named to the Brazilian team for the Worlds on May 11, 2017.

[6] Brazil's synchronized swimming team consisted of 5 athletes (1 male and 4 female).

[7] Legend: (R) = Reserve Athlete Brazil's men's water polo team qualified for the World Championships with a gold medal performance at the 2017 UANA Cup in Couva, Trinidad and Tobago.