The 1991 IAAF World Cross Country Championships was held in Antwerp, Belgium, at the Linkeroever Racecourse on March 24, 1991.

A report on the event was given in The New York Times.

[1] Complete results for senior men,[2] junior men,[3] senior women,[4] junior women,[5] medallists, [6] and the results of British athletes[7] were published.

†: Athlete marked in the results list[2] as nonscorer.

An unofficial count yields the participation of 633 athletes from 51 countries.