The 2020–21 season was the 115th season in the existence of RC Lens and the club's first season back in the top flight of French football. In addition to the domestic league, Lens participated in this season's edition of the Coupe de France. The season covered the period from 1 July 2020 to 30 June 2021.
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.
^ abSince the winners of the 2020–21 Coupe de France, Paris Saint-Germain, qualified for European competition based on league position, the Europa League group stage spot reserved for the cup winners was passed to the fifth-placed team, and the Europa Conference League play-off round spot was passed to the sixth-placed team.
Note: The match was originally scheduled for 30 August 2020, but was postponed due to the delayed conclusion of the knockout phase of the UEFA Champions League.[4]