List of Catholic dioceses in Gabon

The Roman Catholic Church in Gabon is composed of one ecclesiastical province with 4 suffragan dioceses.

Ecclesiastical Province of Libreville

 * Archdiocese of Libreville (1842; diocese 1955; archdiocese 1958)
 * Diocese of Franceville (1974)
 * Diocese of Mouila (1958)
 * Diocese of Oyem (1969)
 * Diocese of Port-Gentil (2003)

Immediately subject to the Holy See

 * Apostolic Vicariate of Makokou