2021–22 Belgian National Division 1

The 2021–22 Belgian National Division 1 was the sixth season of the third-tier football league in Belgium. With the previous season canceled in January 2021 after just a handful of matches played, the decision was made that no teams would be promoted or relegated, meaning that the same teams are taking part this season. The only exception is Roeselare, which defaulted and ceased to exist, making this a season with only 15 teams. Dender EH became champions on 25 May 2022 after winning their final match of the Promotion play-offs at home to Dessel, while their only remaining opponent RFC Liège, lost away to Knokke.