The 2021–22 Lechia Gdańsk season is the club's 78th season of existence, and their 14th continuous in the top flight of Polish football.

The season covered the period from 1 July 2021 to 30 June 2022.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Players may hold more than one non-FIFA nationality.

Key Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.