The following is a list of squads for all sixteen national teams that competed at the 2021 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 at some point in their career.
Group stage
Age, caps, goals and club as of 24 March 2021.
Group A
Germany Head coach: Stefan Kuntz
The squad was announced on 15 March 2021.
Hungary Head coach: Zoltán Gera
The squad was announced on 15 March 2021.
Netherlands Head coach: Erwin van de Looi
The squad was announced on 15 March 2021. On 21 March, it was announced that Lutsharel Geertruida would be replacing Jurriën Timber due to illness.
Romania Head coach: Adrian Mutu
The squad was announced on 16 March 2021. On 19 March, it was announced that Adrian Petre would be replacing Valentin Costache.
Group B
Czech Republic Head coach: Karel Krejčí
The squad was announced on 15 March 2021.
Italy Head coach: Paolo Nicolato
The squad was announced on 15 March 2021. On 19 March, Andrea Pinamonti was replaced by Lorenzo Colombo, because of his unavailability due to COVID-19 quarantine restrictions applied to Inter Milan players. On 23 March, Samuele Ricci withdrew from the squad, with Andrea Pinamonti subsequently returning to the official squad list, though he was not present at the tournament.
Slovenia Head coach: Milenko Ačimovič
Spain Head coach: Luis de la Fuente
The squad was announced on 15 March 2021. On 19 March, Mateu Morey withdrew injured and was replaced by Yéremy Pino.
Group C
Denmark Head coach: Albert Capellas
The squad was announced on 15 March 2021.
France Head coach: Sylvain Ripoll
The squad was announced on 15 March 2021. On 21 March, Houssem Aouar and Moussa Diaby were ruled out due to injury and replaced by Armand Laurienté and Alexis Claude-Maurice.
Iceland Head coach: Davíð Snorri Jónasson
The squad was announced on 18 March 2021.
Russia Head coach: Mikhail Galaktionov
The squad was announced on 15 March 2021. On 20 March, Konstantin Kuchayev was ruled out due to an injury and replaced by Konstantin Tyukavin.
Group D
Croatia Head coach: Igor Bišćan
The squad was announced on 9 March 2021. On 18 March, Joško Gvardiol was ruled out due to an injury and replaced by David Čolina. On 21 March, Luka Sučić was ruled out due to an injury and replaced by Matej Vuk. On 22 March, Borna Sosa was ruled out due to an injury and replaced by Hrvoje Babec.
England Head coach: Aidy Boothroyd
The squad was announced on 15 March 2021. On 23 March, Todd Cantwell was called up to replace the injured Mason Greenwood.
Portugal Head coach: Rui Jorge
The squad was announced on 15 March 2021. On 19 March 2021, forwards Rafael Leão and Jota Filipe were ruled out of the tournament due to injury, being replaced by Gonçalo Ramos and João Mário.
Switzerland Head coach: Mauro Lustrinelli
The squad was announced on 15 March 2021. On 20 March, Noah Okafor withdrew injured and was replaced by Kevin Rüegg.
Knockout stage
Age, caps, goals and club as of 31 May 2021.
Croatia Head coach: Igor Bišćan
The squad was announced on 17 May 2021. On 25 May, Luka Sučić, Dario Vizinger and Mihael Žaper withdrew and were replaced by Neven Đurasek, Sandro Kulenović and Matej Vuk.
Denmark Head coach: Albert Capellas
The squad was announced on 21 May 2021. On 28 May, Mads Bech Sørensen withdrew injured and was replaced by Simon Graves Jensen.
France Head coach: Sylvain Ripoll
The squad was announced on 20 May 2021. On 24 May, Randal Kolo Muani and Alban Lafont withdrew due to club obligations, while Wesley Fofana withdrew injured, and were replaced by Axel Disasi, Etienne Green and Arnaud Kalimuendo. On 26 May, Adrien Truffert withdrew injured and was replaced by Nicolas Cozza.
Germany Head coach: Stefan Kuntz
The squad was announced on 24 May 2021. On 25 May, Maxim Leitsch withdrew injured and was replaced by Lars Lukas Mai. On 30 May, Janni Serra withdrew injured and was replaced by Shinta Appelkamp.
Italy Head coach: Paolo Nicolato
The squad was announced on 24 May 2021.
Netherlands Head coach: Erwin van de Looi
The squad was announced on 21 May 2021. On 24 May, Noa Lang and Deyovaisio Zeefuik withdrew injured, while Ludovit Reis withdrew due to club obligations, and were replaced by Mats Knoester and Kaj Sierhuis (thus reducing the squad to 22 players). On 26 May, Brian Brobbey withdrew injured and no replacement was added (thus reducing the squad to 21 players), though he was still included in the official squad list with the number 19 shirt.
Portugal Head coach: Rui Jorge
The squad was announced on 21 May 2021. On 24 May, Thierry Correia withdrew due to a positive COVID-19 test, while Francisco Trincão withdrew due to quarantine as a close contact, and were replaced by Abdu Conté and Filipe Soares.
Spain Head coach: Luis de la Fuente
The squad was announced on 21 May 2021. On 26 May, Jon Moncayola withdrew injured and was replaced by Antonio Blanco.
Footnotes
References