- Source: Luxembourg at the 2018 Summer Youth Olympics
- Olimpiade Musim Panas 2012
- Luxembourg at the 2018 Summer Youth Olympics
- 2018 Summer Youth Olympics
- Athletics at the 2018 Summer Youth Olympics
- Swimming at the 2018 Summer Youth Olympics
- 2018 Summer Youth Olympics medal table
- Luxembourg at the 2010 Summer Youth Olympics
- Luxembourg at the 2014 Summer Youth Olympics
- Youth Olympic Games
- South Africa at the 2018 Summer Youth Olympics
- 2014 Summer Youth Olympics
Luxembourg participated at the 2018 Summer Youth Olympics in Buenos Aires, Argentina from 6 October to 18 October 2018.
Athletics
Cycling
Luxembourg qualified a boys' and girls' combined team based on its ranking in the Youth Olympic Games Junior Nation Rankings.
Boys' combined team - 1 team of 2 athletes
Girls' combined team - 1 team of 2 athletes
Swimming
Tennis
Singles
Doubles
Triathlon
Luxembourg qualified one athlete based on its performance at the 2018 European Youth Olympic Games Qualifier.
Individual
Relay