The Roman Catholic Diocese of Les Cayes, erected 3 October 1861, is a suffragan of the Archdiocese of Port-au-Prince.

The ecclesiastical province of Port-au-Prince (the archdiocese and the four suffragan dioceses of Cap Haïtien, Les Gonaïves, Les Cayes, and Port-de-Paix) dates from the reorganization following upon the Concordat of 1860 between Pope Pius IX and the Republic of Haiti.

[1] This article incorporates text from a publication now in the public domain: Herbermann, Charles, ed.

New York: Robert Appleton Company.

This article about a Catholic diocese is a stub.