| • 22/05/2019 Men's Under 21s: Squad selected for 2019 UEFA Under 21 Championship |
| # | pos | name | club |
| - | G |  Bartłomiej Drągowski |
 Empoli |
| 1 | G | Kamil Grabara |  Århus |
| 12 | G |  Mateusz Lis |
 Wisła Kraków |
| 22 | G | Tomasz Loska | Górnik Zabrze |
| 6 | D | Krystian Bielik |  Charlton Athletic |
| 5 | D | Paweł Bochniewicz | Górnik Zabrze |
| 21 | D | Karol Fila | Lechia Gdańsk |
| 20 | D | Robert Gumny | Lech Poznań |
| 15 | D | Dominik Jończy | Podbeskidzie Bielsko-Biała |
| 3 | D | Kamil Pestka | Chrobry Głogów |
| 4 | D | Mateusz Wieteska | Legia Warszawa |
| 16 | M | Patryk Dziczek | Piast Gliwice |
| 19 | M | Filip Jagiełło | Zagłębie Lubin |
| 17 | M | Kamil Jóźwiak | Lech Poznań |
| 23 | M | Konrad Michalak | Lechia Gdańsk |
| 8 | M | Jakub Piotrowski |  Genk |
| 2 | M | Przemysław Płacheta | Podbeskidzie Bielsko-Biała |
| 10 | M | Sebastian Szymański | Legia Warszawa |
| 11 | M | Karol Świderski |  PAÓK |
| 13 | M | Mateusz Wdowiak | Cracovia Kraków |
| 7 | M | Szymon Żurkowski | Górnik Zabrze |
| 14 | F | Adam Buksa | Pogoń Szczecin |
| 9 | F | Dawid Kownacki |  Fortuna Düsseldorf |
| 18 | F | Paweł Tomczyk | Piast Gliwice |
| Squad update: |
| • 30/05/2019 Men's Under 21s: Mateusz Lis has replaced injured Bartłomiej Drągowski in the squad for 2019 UEFA Under 21 Championship |