The 2020–21 Boavista F.C. season was the club's 118th season in existence and the club's seventh consecutive season in the top flight of Portuguese football. In addition to the domestic league, Boavista participated in this season's edition of the Taça de Portugal, being eliminated in the fourth round. The club did not qualify for the condensed version of the Taça da Liga this season. The season covered the period from 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.