This article lists the confirmed squads for the 2021 Men's FIH Hockey Junior World Cup tournament held in Bhubaneswar, India between 24 November and 5 December 2021. The 16 national teams were required to register a playing squad of up to 18 players.[1] Players born on or after 1 January 2000 were eligible to compete in the tournament.[2]
A flag is included for coaches that are of a different nationality than their own national team. Those marked in bold have been capped at full international level.