| Iaaf: | RSA |
| Fedname: | Athletics South Africa |
| Year: | 2011 |
| Games: | World Championships in Athletics |
| Location: | Daegu |
| Competitors: | 32 |
| Gold: | 0 |
| Silver: | 2 |
| Bronze: | 2 |
| Previous: | 2009 |
| Next: | 2013 |
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 countryin the event, including the established names such as Khotso Mokoena, LJ van Zyl, Caster Semenya and Mbulaeni Mulaudzi.
The final team on the entry list comprises the names of 33 athletes.
The following athletes appeared on the preliminary Entry List, but not on the Official Start List of the specific event, resulting in a total number of 32 competitors:
| Event | Athlete | |
|---|---|---|
| Men | 4 x 100 metres relay | Simon Magakwe |
| Lebogang Moeng | ||
| Gideon Trotter | ||
| Cornel Fredericks |
The following competitors from South Africa won medals at the Championships
| Medal | Athlete | Event |
|---|---|---|
| Shane Victor Ofentse Mogawane Willem de Beer LJ van Zyl Oscar Pistorius | ||
| 800 metres | ||
| 400 m hurdles | ||
| Javelin throw | ||
| Athlete | Event | Preliminaries | Heats | Semifinals | Final | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Time Width Height | Rank | Time Width Height | Rank | Time Width Height | Rank | Time Width Height | Rank | |||
| Simon Magakwe | 100 metres | 10.53 | align=center style="border-right:double" | 32 | Did not advance | |||||
| Thuso Mpuang | 200 metres | 21.07 | align=center style="border-right:double" | 37 | Did not advance | |||||
| Lebogang Moeng | 200 metres | 21.09 | align=center style="border-right:double" | 38 | Did not advance | |||||
| Oscar Pistorius | 400 metres | 45.39 | align=center style="border-right:double" | 14 | 46.19 | align=center style="border-right:double" | 22 | Did not advance | ||
| Elroy Gelant | 5000 metres | 13:48.33 | align=center style="border-right:double" | 20 | Did not advance | |||||
| Stephen Mokoka | 10,000 metres | 28:51.97 | 13 | |||||||
| Coolboy Ngamole | Marathon | 2:30:01 | 46 | |||||||
| Modike Lucky Mohale | Marathon | 2:38:22 SB | 50 | |||||||
| David Ngakane | Marathon | DNF | ||||||||
| Lehann Fourie | 110 m hurdles | 13.86 | align=center style="border-right:double" | 27 | Did not advance | |||||
| LJ van Zyl | 400 m hurdles | 48.58 | 3 Q | 49.05 | 7 Q | 48.80 | ||||
| Cornel Fredericks | 400 m hurdles | 48.52 | 1 Q | 48.83 | 4 Q | 49.12 | 5 | |||
| Ruben Ramolefi | 3000 metres steeplechase | 8:11.50 | 2 Q | 8:30.47 | 13 | |||||
| Hannes Dreyer Ofentse Mogawane Roscoe Engel Thuso Mpuang | 4 x 100 metres relay | 38.72 SB | align=center style="border-right:double" | 11 | Did not advance | |||||
| Shane Victor Ofentse Mogawane Willem de Beer LJ van Zyl Oscar Pistorius | 2:59.21 NR | align=center style="border-right:double" | 3 | 2:59.87 | ||||||
| Luvo Manyonga | Long jump | 8.04 | align=center style="border-right:double" | 10 | 8.21 | 5 | ||||
| Godfrey Khotso Mokoena | Long jump | 8.00 | align=center style="border-right:double" | 15 | Did not advance | |||||
| Tumelo Thagane | Triple jump | NM | align=center style="border-right:double" | Did not advance | ||||||
| Robert Oosthuizen | Javelin throw | 73.14 | align=center style="border-right:double" | 33 | Did not advance | |||||
Decathlon
| Willem Coertzen | |||||
|---|---|---|---|---|---|
| Event | Results | Points | Rank | ||
| 100 m | 11.16 | 825 | 20 | ||
| Long jump | 7.37 SB | 903 | 9 | ||
| Shot put | 13.48 | 697 | 23 | ||
| High jump | 2.02 | 822 | 7 | ||
| 400 m | 49.20 | 852 | 9 | ||
| 110 m hurdles | 14.48 | 913 | 10 | ||
| Discus throw | 43.13 PB | 728 | 19 | ||
| Pole vault | NM | 0 | |||
| Javelin throw | DNS | ||||
| 1500 m | DNS | ||||
| Total | DNF | ||||
| Athlete | Event | Preliminaries | Heats | Semifinals | Final | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Time Width Height | Rank | Time Width Height | Rank | Time Width Height | Rank | Time Width Height | Rank | |||
| Caster Semenya | 800 metres | 2:01.01 | align=center style="border-right:double" | 5 | 1:58.07 SB | align=center style="border-right:double" | 1 | 1:56.35 SB | ||
| René Kalmer | Marathon | 2:38:16 | 31 | |||||||
| Annerien van Schalkwyk | Marathon | 2:43:59 SB | 37 | |||||||
| Tanith Maxwell | Marathon | DNS | ||||||||
| Wenda Theron | 400 m hurdles | 56.13 | 17 Q | 57.06 | 23 | align=center colspan=2 | Did not advance | |||
| Simoné du Toit | Shot put | 15.83 | align=center style="border-right:double" | 24 | Did not advance | |||||
| Sunette Viljoen | Javelin throw | 65.34 | align=center style="border-right:double" | 2 | 68.38 AR | |||||
| Justine Robbeson | Javelin throw | 58.08 | align=center style="border-right:double" | 19 | Did not advance | |||||