| Games: | Summer Youth Olympics |
| Games Link: | 2018 Summer Youth Olympics |
| Year: | 2018 |
| Noc: | MGL |
| Nocname: | Mongolian National Olympic Committee |
| Website: | http://www.olympic.mn/ |
| Competitors: | 11 |
| Sports: | 6 |
| Location: | Buenos Aires, Argentina |
| Start Date: | 6 |
| End Date: | 18 October 2018 |
| Gold: | 0 |
| Silver: | 2 |
| Bronze: | 1 |
| Rank: | 67 |
| Appearances: | auto |
Mongolia participated at the 2018 Summer Youth Olympics in Buenos Aires, Argentina from 6 October to 18 October 2018.
Medals awarded to participants of mixed-NOC (combined) teams are represented in italics. These medals are not counted towards the individual NOC medal tally.
| Medal | Name | Sport | Event | Date | |
|---|---|---|---|---|---|
| Shooting | Mixed Team 10m Air Rifle | 10 October | |||
| 7 October | |||||
| 8 October | |||||
| 13 October |
See main article: Basketball at the 2018 Summer Youth Olympics.
Mongolia qualified a boys' team based on the U18 3x3 National Federation Ranking.[1]
See main article: Judo at the 2018 Summer Youth Olympics.
| Athlete | Event | Round of 16 | Quarterfinals | Semifinals | Repechage | Final / | |||
|---|---|---|---|---|---|---|---|---|---|
| Round of 8 | Quarterfinals | Semifinals | |||||||
| Opposition Result | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Rank | ||
| Ganbürgediin Temüüjin | Boys' 55 kg | W | W | L | |||||
| Sosorbaram Lkhagvasüren | Girls' 52 kg | W | W | W | L | ||||
| Athletes | Event | Round of 16 | Quarterfinals | Semifinals | Final | Rank | |
|---|---|---|---|---|---|---|---|
| Opposition Result | Opposition Result | Opposition Result | Opposition Result | ||||
| Team Barcelona | Mixed Team | L 3–4 | did not advance | ||||
| Team Moscow | Mixed Team | W 4–3 | L 3–4 | did not advance | |||
See main article: Shooting at the 2018 Summer Youth Olympics.
See main article: Taekwondo at the 2018 Summer Youth Olympics.
See main article: Weightlifting at the 2018 Summer Youth Olympics.
Mongolia qualified one athlete based on its performance at the 2018 Asian Youth Championships.[2]
See main article: Wrestling at the 2018 Summer Youth Olympics.
Key:
| Athlete | Event | Group stage | Final / | Rank | ||||
|---|---|---|---|---|---|---|---|---|
| Opposition Score | Opposition Score | Opposition Score | Opposition Score | Rank | Opposition Score | |||
| Tamiryn Oyun-Erdene | Girls' freestyle −65kg | W 4–1 | L 1–11 | W 4–2 | W 4–2 | 2 | W 15–4 | |
| Batbaataryn Enkhzul | Girls' freestyle 43 kg | |||||||