The 2020–21 Reial Club Deportiu Espanyol season was the club's 86th season in existence and the club's first season back in the second division of Spanish football. In addition to the domestic league, Espanyol participated in this season's edition of the Copa del Rey. 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.
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.