List of Polish football transfers summer 2017

This is a list of Polish football transfers in the 2017 summer transfer window by club. Only clubs in the 2017–18 Ekstraklasa are included.

Arka Gdynia
In:

Out:

Bruk-Bet Termalica Nieciecza
In:

Out:

Cracovia
In:

Out:

Górnik Zabrze
In:

Out:

Jagiellonia Białystok
In:

Out:

Korona Kielce
In:

Out:

Lech Poznań
In:

Out:

Lechia Gdańsk
In:

Out:

Legia Warsaw
In:

Out:

Piast Gliwice
In:

Out:

Pogoń Szczecin
In:

Out:

Sandecja Nowy Sącz
In:

Out:

Śląsk Wrocław
In:

Out:

Wisła Kraków
In:

Out:

Wisła Płock
In:

Out:

Zagłębie Lubin
In:

Out: