The 2020–21 season was the 114th season in the existence of Atlético Madrid and the club's 19th consecutive season in the top flight of Spanish football. In addition to the domestic league, Atlético Madrid participated in this season's editions of the UEFA Champions League and also participated in the Copa del Rey. The season covered the period from 14 August 2020 to 30 June 2021, with the late start to the season due to the COVID-19 pandemic in Spain.