2017 UEFA European Under-21 Championship squads

The following is a list of squads for all twelve national teams that competed at the 2017 UEFA European Under-21 Championship. Each national team had to submit a final squad of 23 players, three of whom had to be goalkeepers. Players in boldface were capped at full international level prior to the start of the tournament. Age, caps, goals and club as of 16 June 2017.

2017 UEFA European Under-21 Championship squads

The following is a list of squads for all twelve national teams that competed at the 2017 UEFA European Under-21 Championship. Each national team had to submit a final squad of 23 players, three of whom had to be goalkeepers. Players in boldface were capped at full international level prior to the start of the tournament. Age, caps, goals and club as of 16 June 2017.