The Roman Catholic Church in Gabon is composed of one ecclesiastical province with 4 suffragan dioceses.
List of dioceses[edit]
Episcopal Conference of Gabon[edit]
Ecclesiastical Province of Libreville[edit]
- 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)