| Iaaf: | RSA |
| Year: | 2017 |
| Games: | World Championships in Athletics |
| Location: | London |
| Competitors: | 29[1] |
| Events: | 19 |
| Appearances: | |
| Gold: | 3 |
| Silver: | 1 |
| Bronze: | 2 |
| Rank: | 3[2] |
| Previous: | 2015 |
| Next: | 2019 |
South Africa competed at the 2017 World Championships in Athletics in London, United Kingdom, from 4 to 13 August 2017.
| Medal | Name | Event | Date | |
|---|---|---|---|---|
| Luvo Manyonga | Men's long jump | 5 August | ||
| Wayde van Niekerk | Men's 400 metres | 8 August | ||
| Caster Semenya | Women's 800 metres | 13 August | ||
| Wayde van Niekerk | Men's 200 metres | 10 August | ||
| Ruswahl Samaai | Men's long jump | 5 August | ||
| Caster Semenya | Women's 1500 metres | 7 August |
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Result | Rank | Result | Rank | Result | Rank | |||
| style=text-align:left | Thando Roto | style=text-align:left rowspan=2 | 100 metres | – | colspan=4 | |||
| style=text-align:left | Akani Simbine | 10.15 | 15 q | 10.05 | 5 Q | 10.01 | 5 | |
| style=text-align:left | Clarence Munyai | style=text-align:left rowspan=3 | 200 metres | – | colspan=4 | |||
| style=text-align:left | Akani Simbine | 20.26 | 9 Q | 20.62 | 18 | colspan=2 | ||
| style=text-align:left | Wayde Van Niekerk | 20.16 | 4 Q | 20.28 | 7 q | 20.11 | ||
| style=text-align:left | Pieter Conradie | style=text-align:left rowspan=2 | 400 metres | 46.62 | 40 | colspan=4 | ||
| style=text-align:left | Wayde Van Niekerk | 45.27 | 16 Q | 44.22 | 3 Q | 43.98 | ||
| style=text-align:left | Stephen Mokoka | style=text-align:left | 10,000 metres | 28:14.67 | 20 | |||
| style=text-align:left | Lusapho April | style=text-align:left rowspan=3 | Marathon | – | ||||
| style=text-align:left | Desmond Mokgobu | 2:16.14 | 21 | |||||
| style=text-align:left | Sibusiso Nzima | – | ||||||
| style=text-align:left | Antonio Alkana | style=text-align:left | 110 metres hurdles | 13.43 | 14 Q | 13.59 | 16 | colspan=2 |
| style=text-align:left | Lebogang Shange | style=text-align:left | 20 kilometres walk | 1:19.18 NR | 4 | |||
| Athlete | Event | Qualification | Final | ||||
|---|---|---|---|---|---|---|---|
| Distance | Position | Distance | Position | ||||
| style=text-align:left | Luvo Manyonga | style=text-align:left rowspan=3 | Long jump | 8.12 | 4 Q | 8.48 | |
| style=text-align:left | Ruswahl Samaai | 8.14 | 3 Q | 8.32 | |||
| style=text-align:left | Zarck Visser | 7.66 | 25 | colspan=2 | |||
| style=text-align:left | Orazio Cremona | style=text-align:left rowspan=2 | Shot put | 19.81 | 23 | colspan=2 rowspan=2 | |
| style=text-align:left | Jaco Engelbrecht | 19.59 | 27 | ||||
| style=text-align:left | Victor Hogan | style=text-align:left | Discus throw | 62.26 | 18 | colspan=2 | |
| style=text-align:left | Rocco van Rooyen | style=text-align:left | Javelin throw | 74.02 | 30 | ||
| Athlete | Event | Heat | Semifinal | Final | |||||
|---|---|---|---|---|---|---|---|---|---|
| Result | Rank | Result | Rank | Result | Rank | ||||
| style=text-align:left | Carina Horn | style=text-align:left | 100 metres | 11.28 | 19 Q | 11.26 | 20 | colspan=2 | |
| style=text-align:left | Justine Palframan | style=text-align:left | 200 metres | 23.35 | 21 q | 23.21 | 15 | colspan=2 | |
| style=text-align:left | Caster Semenya | style=text-align:left rowspan=2 | 800 metres | 2:01.33 | 15 Q | 1:58.90 | 1 Q | 1:55.16 WL | |
| style=text-align:left | Gena Löfstrand | 2:01.73 | 20 q | 2:03.67 | 23 | colspan=2 | |||
| style=text-align:left | Caster Semenya | style=text-align:left | 1500 metres | 4:02.84 SB | 2 Q | 4:03.80 | 4 Q | 4:02.90 | |
| style=text-align:left | Jenna Challenor | style=text-align:left rowspan=2 | Marathon | 2:47:22 SB | 59 | ||||
| style=text-align:left | Mapaseka Makhanya | 2:40:15 SB | 40 | ||||||
| style=text-align:left | Wenda Nel | style=text-align:left | 400 metres hurdles | 55.47 | 12 Q | 55.70 | 10 | colspan=2 | |
| style=text-align:left | Justine Palframan Gena Löfstrand Ariane Nel Wenda Nel | style=text-align:left | 4 × 400 metres relay | 3:37.82 SB | 13 | ||||