2020–21 Willem II season

The 2020–21 Willem II season was the club's 125th season in existence and the club's 7th consecutive season in the top flight of Dutch football. In addition to the domestic league, Willem II participated in this season's editions of the KNVB Cup and the UEFA Europa League. The season covered the period from 1 July 2020 to 30 June 2021.

Matches
The league fixtures were announced on 24 July 2020.