The 2021 Men's FIH Hockey Junior World Cup was the 12th edition of the Men's FIH Hockey Junior World Cup, the biennial men's under-21 field hockey world championship organized by the International Hockey Federation. It was held at the Kalinga Hockey Stadium in Bhubaneswar, India from 24 November to 5 December 2021.
The hosts India were the defending champions but lost to Germany in the semifinals. Argentina won their second title by defeating Germany in the final.
A total of 16 teams qualified for the final tournament. In addition to India, who qualified automatically as hosts, 12 other teams qualified from five separate continental competitions and another 3 won wildcards after withdraws.
The following 14 umpires were selected on 23 September 2021 by the FIH:
Players born on or after 1 January 2000 were eligible to compete in the tournament. Each team had to name a squad of up to 18 players.
All times are local (UTC+5:30).
The following awards were given at the conclusion of the tournament.