This article describes about the squads for the 2026 UEFA European Under-17 Championship in Estonia. Each national team had to submit a squad of 20 players born on or after 1 January 2009.

All ages are as of 25 May 2025, the day before the start of tournament.

Group A Belgium Head coach: Sven Vermant

Croatia The final squad was announced on 12 May 2026.

Head coach: Marijan Budimir

Estonia The final squad was announced on 14 May 2026.

Head coach: Marko Pärnpuu

Spain The final squad was announced on 11 May 2026.

Head coach: Sergio García

Group B Denmark The final squad was announced on 12 May 2026.

Head coach: Morten Corlin

France The final squad was announced on 12 May 2026.

Head coach: José Alcocer

Italy The final squad was announced on 22 May 2026.

Head coach: Daniele Franceschini

Montenegro The final squad was announced on 15 May 2026.

Head coach: Radovan Kavaja

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