The lineup announced by Czesław Michniewicz on Tuesday includes star striker Robert Lewandowski and other regulars such as Napoli midfielder Piotr Zieliński and Hertha Berlin forward Krzysztof Piątek.
Fresh faces include Chicago Fire goalkeeper Gabriel Slonina and Cracovia defender Kamil Pestka.
English Premier League right-back Matty Cash, who became a Polish citizen last year, is also among those called up.
Poland will play Wales at home in the southwestern city of Wrocław on June 1 before taking on Belgium in Brussels on June 8 and the Netherlands in Rotterdam on June 11.
On June 14, Poland will face off against Belgium on home turf in Warsaw.
The Nations League is the European football governing body UEFA’s newest national-team competition that is now in its third edition.
The competition is designed to enable teams to play against those that are similarly ranked and may also offer an alternative path for teams to qualify for the 2024 European championships.
Portugal won the first edition of the Nations League in 2019, while France won the 2020/2021 UEFA Nations League after beating Spain 2-1 in the final in Milan in October.
Here is the full Poland squad for the June matches against Wales, Belgium and the Netherlands:
Goalkeepers:
Bartłomiej Drągowski (Fiorentina)
Kamil Grabara (FC Copenhagen)
Gabriel Slonina (Chicago Fire)
Łukasz Skorupski (Bologna)
Wojciech Szczęsny (Juventus)
Defenders:
Jan Bednarek (Southampton)
Bartosz Bereszyński (Sampdoria)
Matty Cash (Aston Villa)
Kamil Glik (Benevento)
Robert Gumny (FC Augsburg)
Marcin Kamiński (Schalke 04 Gelsenkirchen)
Tomasz Kędziora (Dynamo Kyiv)
Jakub Kiwior (Spezia)
Patryk Kun (Raków Częstochowa)
Kamil Pestka (Cracovia)
Tymoteusz Puchacz (Trabzonspor)
Sebastian Walukiewicz (Cagliari)
Mateusz Wieteska (Legia Warsaw)
Nicola Zalewski (AS Roma)
Midfielders:
Krystian Bielik (Derby County)
Przemysław Frankowski (Lens)
Jacek Góralski (Kairat Almaty)
Kamil Grosicki (Pogoń Szczecin)
Kamil Jóźwiak (Charlotte FC)
Jakub Kamiński (Lech Poznań)
Mateusz Klich (Leeds United)
Grzegorz Krychowiak (AEK Athens)
Karol Linetty (Torino)
Konrad Michalak (Konyaspor)
Przemysław Płacheta (Norwich City)
Damian Szymański (AEK Athens)
Sebastian Szymański (Dynamo Moscow)
Piotr Zieliński (Napoli)
Szymon Żurkowski (Empoli)
Forwards:
Adam Buksa (New England Revolution)
Robert Lewandowski (Bayern Munich)
Arkadiusz Milik (Olympique Marseille)
Krzysztof Piątek (Fiorentina)
Karol Świderski (Charlotte FC)
(gs)
Source: PAP, pzpn.pl