The 2021–22 Belgian Cup, called the Croky Cup for sponsorship reasons, was the 67th season of Belgium's annual football cup competition. The competition began on 25 July 2021 and ended with the final on 18 April 2022. The winners of the competition qualified for the 2022–23 UEFA Europa League play-off round.

Competition format

The competition consists of one preliminary round, followed by ten proper rounds. All rounds were single-match elimination rounds, with the exception of the semi-finals which are again held over two legs. When tied after 90 minutes in the first three rounds, penalties were taken immediately. From round four, when tied after 90 minutes first an extra time period of 30 minutes was played, then penalties were taken if still necessary.

Teams entered the competition in different rounds, based upon their 2021–22 league affiliation. Teams from the fifth-level Belgian Division 3 or lower began in round 1, with the exception of six teams from the Belgian Provincial Leagues which were randomly drawn to start in the preliminary round. Belgian Division 2 teams entered in round 2, Belgian National Division 1 teams entered in round 3, Belgian First Division B teams in round 5 (except two already in round 3) and finally the Belgian First Division A teams entered in round 6 (except two already in round 5).

Round and draw dates

Preliminary round

This round of matches were played on 25 July 2021^[1] and included six teams playing in the Belgian Provincial Leagues.

First round

This round of matches were played on 31 July and 1 August 2021.^[1]