South Africa competed at the 2023 World Aquatics Championships in Fukuoka, Japan from 14 to 30 July.

The following is the list of number of competitors participating at the Championships per discipline.

[1] Laura Strugnell South Africa entered 4 divers.

[2][3] South Africa entered 6 open water swimmers.

[7] Chad Le Clos was originally named in the team, however withdrew due to illness.