Belgium at the UCI Cyclo-cross World Championships is an overview of the Belgian results at the UCI Cyclo-cross World Championships.

Since 2017, Belgium's national manager of the men's elite selection is Sven Vanthourenhout.

Belgium's most successful competitor in elite races was Eric De Vlaeminck, with 7 gold medals.

The nation's first medal, a silver, was earned by Firmin Van Kerrebroeck in the men's elite race in 1957.

This is a list of all Belgian medals (including elite, under-23 and junior races).