The following is a list of all the national team squads that participated in the 2023 FIFA U-17 World Cup.[1]
Each team had to name a squad of 21 players (three of whom had to be goalkeepers) by the FIFA deadline. All players of its representative team had to have been born on or after 1 January 2006. The age listed for each player is as of 10 November 2023, the first day of the tournament. Those marked in bold had been capped with the senior national team.