- Source: South Africa at the 2018 Summer Youth Olympics
- Olimpiade Musim Panas 2012
- Senegal
- Daftar olahragawan LGBT
- South Africa at the 2018 Summer Youth Olympics
- 2018 Summer Youth Olympics
- 2026 Summer Youth Olympics
- Athletics at the 2018 Summer Youth Olympics
- South Africa at the 2018 Winter Olympics
- Swimming at the 2018 Summer Youth Olympics
- Breaking at the 2018 Summer Youth Olympics
- South Africa at the 2014 Summer Youth Olympics
- Bids for the 2036 Summer Olympics
- South Africa at the 2010 Summer Youth Olympics
South Africa participated at the 2018 Summer Youth Olympics in Buenos Aires, Argentina from 6 October to 18 October 2018.
Archery
Individual
Team
Athletics
Canoeing
South Africa qualified two boats based on its performance at the 2018 World Qualification Event.
Boys' K1 - 1 boat
Girls' K1 - 1 boat
Boys
Girls
Dancesport
South Africa qualified one dancer based on its performance at the 2018 World Youth Breaking Championship.
B-Boys - Jordan Smith
Equestrian
South Africa qualified a rider based on its ranking in the FEI World Jumping Challenge Rankings.
Individual Jumping - 1 athlete
Golf
Individual
Team
Gymnastics
= Acrobatic
=South Africa qualified a mixed pair based on its performance at the 2018 Acrobatic Gymnastics World Championship.
Mixed pair - 1 team of 2 athletes
Rachel Nell and Sidwell Madibeng
= Artistic
=South Africa qualified two gymnasts based on its performance at the 2018 African Junior Championship.
Boys' artistic individual all-around - 1 quota
Ruan Lange
Girls' artistic individual all-around - 1 quota
Lisa Conradie
= Rhythmic
=South Africa qualified one gymnast based on its performance at the 2018 African Junior Championship.
Girls' rhythmic individual all-around - 1 quota
Field hockey
Roster
= Preliminary round
=Pool A
= Final round
=Quarterfinal
Semifinal
Bronze-medal match
Modern pentathlon
South Africa qualified two pentathletes based on its performance at the Asian/Oceanian Youth Olympic Games Qualifier.
Boys' Individual - Rhys Poovan
Girls' Individual - Alida van der Merwe
Rowing
South Africa qualified two boats based on its performance at the 2017 World Junior Rowing Championships.
Boys' single sculls - 1 athlete
Girls' single sculls - 1 athlete
Rugby sevens
Boys' tournament - 1 team of 12 athletes
= Group stage
== Bronze Medal Game
=Sailing
South Africa qualified one boat based on its performance at the African and European IKA Twin Tip Racing Qualifiers.
Girls' IKA Twin Tip Racing - 1 boat
Shooting
South Africa qualified one sport shooter based on its performance at the 2017 African Championships.
Boys' 10m Air Rifle - 1 quota
Individual
Team
Sport climbing
South Africa qualified two sport climbers based on its performance at the 2017 World African Sport Climbing Championships.
Boys' combined - 1 quota (David Naude)
Girls' combined - 1 quota (Angela Eckhardt)
Swimming
Tennis
Singles
Doubles
Triathlon
South Africa qualified two athletes based on its performance at the 2018 African Youth Olympic Games Qualifier.
Individual
Relay
Weightlifting
South Africa qualified one athlete based on its performance at the 2018 African Youth Championships.
Wrestling
South Africa qualified one wrestler based on its performance at the 2018 African Cadet Championships.