The 2020–21 FC Zenit Saint Petersburg season was the club's 96th season in existence and the 25th consecutive season in the top flight of Russian football. In addition to the domestic league, Zenit Saint Petersburg participated in this season's editions of the Russian Cup and UEFA Champions League. The season covers the period from August 2020 to 30 June 2021. Zenit ended the season as Premier League and Super Cup champions, reached the Round of 16 in the Russian Cup and finished 4th in their UEFA Champions League Group.