The Belgian Fourth Division D (Dutch: Vierde Klasse) was one of the four leagues at the fourth level of the Belgian football league system, the other ones being the Belgian Fourth Division A, B and C. This division existed from the 1952-53 to 2015-16 seasons and was played every year with 16 clubs in each league. The league was replaced by the Belgian Second Amateur Division. Teams who finished 16th, 15th and 14th were relegated to the Belgian Provincial Leagues. The 13th placed team had to playoff in order to stay in the division.