South Africa competed at the 2011 World Championships in Athletics from 27 August to 4 September in Daegu, South Korea.

Athletics South Africa announced the final team of 26 athletes to represent the country in the event, including the established names such as Khotso Mokoena, LJ van Zyl, Caster Semenya and Mbulaeni Mulaudzi.

[1] The final team on the entry list comprises the names of 33 athletes.

[2] The following athletes appeared on the preliminary Entry List,[2] but not on the Official Start List of the specific event,[3] resulting in a total number of 32 competitors: The following competitors from South Africa won medals at the Championships Decathlon