The following is a list of squads for each national team competing at the 2023 UEFA Women's Under-17 Championship in Estonia. Each national team had to submit a squad of 20 players born on or after 1 January 2006.
Head coach: Aleksandra à  evoldajeva
On 8 May 2023, a preliminary 23-player squad was announced. Four days later, the final 20-player squad was announced. On the day of the beginning of the tournament, Pilleriin Pohlak withdrew for health reasons and was replaced by Karmen Vapper.
Head coach: Sabine Loderer
The final 20-player squad was announced on 14 May 2023.
Head coach: Kenio Gonzalo
The final 20-player squad was announced on 1 May 2023.
Head coach: Veronica Maglia
Head coach: Mo Marley
The squad was announced on 11 May 2023.
Head coach: Peggy Provost
The final 20-player squad was announced on 2 May 2023.
Head coach: Marcin Kasprowicz
The final 20-player squad was announced on 24 April 2023.
Head coach: Lotta Hellenberg
The final 20-player squad was announced on 26 April 2023. The squad numbers were released on 13 May 2023.