| Noc: | LUX |
| Nocname: | Luxembourgian Olympic and Sporting Committee |
| Games: | Summer Youth Olympics |
| Year: | 2014 |
| Location: | Nanjing |
| Competitors: | 4 |
| Sports: | 3 |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 0 |
| Appearances: | auto |
Luxembourg competed at the 2014 Summer Youth Olympics, in Nanjing, China from 16 August to 28 August 2014.
Medals awarded to participants of mixed-NOC (Combined) teams are represented in italics. These medals are not counted towards the individual NOC medal tally.
See main article: Athletics at the 2014 Summer Youth Olympics.
Luxembourg qualified one athlete.[1]
Qualification Legend: Q=Final A (medal); qB=Final B (non-medal); qC=Final C (non-medal); qD=Final D (non-medal); qE=Final E (non-medal)
See main article: Judo at the 2014 Summer Youth Olympics.
Luxembourg was given a quota to compete by the tripartite committee.[2]
See main article: Swimming at the 2014 Summer Youth Olympics.
Luxembourg qualified two swimmers.[3]
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Julie Meynen | 50 m freestyle | 26.01 | 6 Q | 25.60 | 4 Q | 25.57 | 4 |
| 100 m freestyle | 57.06 | 13 Q | 55.33 | 3 Q | 55.29 | 6 | ||
| align=left rowspan=4 | Monique Olivier | 200 m freestyle | 2:03.59 | 17 | did not advance | |||
| 400 m freestyle | 4:16.37 | 10 | did not advance | |||||
| 800 m freestyle | 8:47.71 | 9 | ||||||
| 200 m individual medley | 2:23.17 | 22 | did not advance | |||||