South Africa competed at the 2017 World Aquatics Championships in Budapest, Hungary from 14 to 30 July 2017.

South Africa has entered 4 divers (four female).

[1] South Africa has entered six open water swimmers[2][3] South African 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):[4] South Africa's synchronized swimming team consisted of 10 athletes (10 female).

[5] Legend: (R) = Reserve Athlete South Africa qualified both a men's and women's teams.

[6][7]