Field hockey at the 2018 Summer Youth Olympics
Field Hockey at the 2018 Summer Youth Olympics was held from 7 to 14 October. The events took place at the Parque Polideportivo Roca in Buenos Aires, Argentina. For the second Youth Olympics in a row, the format for this event was Hockey 5s, a 5-a-side tournament that is played on a smaller field size.
Qualification
Initially, 10 teams per tournament were scheduled to take part; however, on 6 July 2017 the International Hockey Federation announced the tournaments will be expanded to 12 teams. As hosts, Argentina qualified in both tournaments. Five continental tournaments were scheduled with two nations qualifying to the Youth Olympics. The 12th and final team was determined through a draw where the third best team qualified from the continent qualified. Should a nation decline it would go to the third best team in another continent. The results of the random draw for the boys’ tournament was Oceania > Asia > Europe > Africa and Pan American while the results for the girls’ tournament was Africa > Asia > Europe > Oceania > Pan America.To be eligible to participate at the Youth Olympics athletes must have been born between 1 January 2000 and 31 December 2003. Also nations may only qualify in one team sport per gender.
Boys
| Event | Location | Date | Total Places | Qualified |
| Host Nation | – | – | 1 | |
| EuroHockey5s Championships |  Walcz | 6–9 July 2017 | 2 | |
| Youth Pan American Championship |  Guadalajara | 10–17 March 2018 | 2 | |
| Asian Youth Olympic Games Qualifier |  Bangkok | 25–29 April 2018 | 3 | |
| Oceania Youth Olympic Games Qualifier |  Port Moresby | 25–28 April 2018 | 2 | |
| African Youth Games |  Algiers | 19–26 July 2018 | 2 | |
| TOTAL | 12 |
Girls
| Event | Location | Date | Total Places | Qualified |
| Host Nation | – | – | 1 | |
| EuroHockey5s Championships |  Wattignies | 12–15 July 2017 | 2 | |
| Youth Pan American Championship | Guadalajara | 10–17 March 2018 | 2 | |
| Asian Youth Olympic Games Qualifier | Bangkok | 25–29 April 2018 | 2 | |
| Oceania Youth Olympic Games Qualifier | Port Moresby | 25–28 April 2018 | 2 | |
| African Youth Games | Algiers | 19–26 July 2018 | 3 | |
| TOTAL | 12 |
Schedule
The schedule was released by the FIH and Buenos Aires 2018 Youth Olympic Games Organising Committee. Each day during the group stage will contain six boys' matches and six girls' matches.| Event Date | Event Day | Starting Time | Event Details |
| October 7 | Sunday | 09:30 | Boys' Group Stage Girls' Group Stage |
| October 8 | Monday | 09:30 | Boys' Group Stage Girls' Group Stage |
| October 9 | Tuesday | 09:30 | Boys' Group Stage Girls' Group Stage |
| October 10 | Wednesday | 09:30 | Boys' Group Stage Girls' Group Stage |
| October 11 | Thursday | 09:30 | Boys' Group Stage Girls' Group Stage |
| October 12 | Friday | 08:00 | Boys' 9–10 Place Match Boys' Quarterfinals Boys' 11–12 Place Match Girls' Quarterfinals |
| October 13 | Saturday | 09:00 | Girls' 11–12 Place Match Boys' 5–8 Place Match Boys' Semifinals Girls' Semifinals |
| October 14 | Sunday | 08:30 | Boys' 7–8 Place Match Girls' 7–8 Place Match Boys' 5–6 Place Match Girls' 5–6 Place Match Boys' 3–4 Place Match Girls' 3–4 Place Match Boys' Final Girls' Final |