| • 14/08/2020 Men's Under 21s: Squad selected for 2021 UEFA Under 21 Championship qualifiers against Estonia and Russia |
| # | pos | name | club |
| G | Marcin Bułka |  Paris Saint-Germain |
|
| G | Kamil Grabara |  Liverpool |
|
| G | Radosław Majecki | Monaco |
|
| D |  Karol Fila |
 Lechia Gdańsk |
|
| D | Robert Gumny |
Lech Poznań |
|
| D | Adrian Gryszkiewicz |
Górnik Zabrze |
|
| D | Mateusz Hołownia |
Legia Warszawa |
|
| D | Jakub Kiwior |  MŠK Žilina |
|
| D | Kamil Piątkowski |
Raków Częstochowa |
|
| D | Tymoteusz Puchacz |
Lech Poznań |
|
| D | Jan Sobociński |
ŁKS Łódź |
|
| D | Przemysław Wiśniewski |
Górnik Zabrze |
|
| M | Mateusz Bogusz | Leeds United |
|
| M | Patryk Dziczek |  Salernitana |
|
| M | Jakub Kamiński |
Lech Poznań |
|
| M | Sebastian Kowalczyk |
Pogoń Szczecin |
|
| M | Marcin Listkowski |
Pogoń Szczecin |
|
| M | Tomasz Makowski |
Lechia Gdańsk |
|
| M | Przemysław Płacheta | Norwich City |
|
| M | Mateusz Praszelik |
Śląsk Wrocław |
|
| M | Bartosz Slisz |
Legia Warszawa |
|
| F | Bartosz Białek |
 VfL Wolfsburg |
|
| F | Bartosz Bida |
Jagiellonia Białystok |
|
| F | Patryk Klimala |  Celtic FC |
|
| F | Maciej Rosołek |
Legia Warszawa |
|
| F | Paweł Tomczyk |
Stal Mielec |
| Squad update: |
| • 25/08/2020 Men's Under 21s: Bartosz Białek has been added to the squad for 2021 UEFA Under 21 Championship qualifiers against Estonia and Russia |
| • 25/08/2020 Men's Under 21s: Players from Polish clubs have been added to the squad for 2021 UEFA Under 21 Championship qualifiers against Estonia and Russia |