This article displays the squads for the 2023 IHF Men's U21 Handball World Championship. Each team consisted of 18 players, of which 16 were fielded for each game.

Age, club, appearances and goals correct as of 20 June 2023.

Group A Croatia A 18-player squad was announced on 9 June 2023.

Head coach: Andrija Nikolić

France A 18-player squad was announced on 1 June 2023.

Head coach: Yohan Delattre

Poland A 16-player squad was announced on 18 June 2023.

Head coach: Zygmunt Kamys

United States A 18-player squad was announced on 13 June 2023.

Head coach: Danilo Rojevic

Group B Algeria

Head coach: Abderrahmane Hadj

Germany A 18-player squad was announced on 12 June 2023.

Head coach: Martin Heuberger

Libya

Head coach: Hedi Guiga

Tunisia

Head coach: Zouheir Messaoud

Group C Brazil

Head coach: Drean Dutra

Costa Rica

Head coach: Hanner Parra

Kuwait A 18-player squad was announced on 18 June 2023.

Head coach: Magdi Aboelmagd

Portugal A 16-player squad was announced on 12 June 2023.

Head coach: Carlos Martingo

Group D Angola A 16-player squad was announced on 4 June 2023.

Head coach: Wiliam de Almeida

Faroe Islands A 16-player squad was announced on 6 June 2023.

Head coach: Julian Johansen

Japan A 18-player squad was announced on 10 June 2023.

Head coach: Shinnosuke Uematsu

Spain A 16-player squad was announced on 20 June 2023.

Head coach: Rodrigo Reñones

Group E Argentina A 18-player squad was announced on 24 May 2023.

Head coach: Rodolfo Jung

Denmark A 16-player squad was announced on 24 May 2023.

Head coach: Arnór Atlason

Hungary A 18-player squad was announced on 7 June 2023.

Head coach: László Sótonyi

Norway A 16-player squad was announced on 26 May 2023.

Head coach: Žarko Pejović

Group F Bahrain A 18-player squad was announced on 9 June 2023.

Head coach: Abdulla Esam

Greenland

Head coach: Angutimmarik Kreutzmann

Slovenia A 16-player squad was announced on 17 June 2023.

Head coach: Saša Praprotnik

Sweden A 17-player squad was announced on 15 May 2023.

Head coach: Dennis Sandberg

Group G Chile A 16-player squad was announced on 12 June 2023.

Head coach: Aitor Etxaburu

Iceland

Head coach: Einar Andri Einarsson

Morocco

Head coach: Mohammed Berrajaâ

Serbia A 18-player squad was announced on 19 June 2023.

Head coach: Đorđe Teodorović

Group H Cuba

Head coach: Alexis Luis

Egypt A 17-player squad was announced on 14 June 2023.

Head coach: Mohamed El-Alfy

Greece

Head coach: Nikolaos Georgiadis

Saudi Arabia A 18-player squad was announced on 6 June 2023.

Head coach: Juan López

References