The Diocese of Port Harcourt () is a Latin Church ecclesiastical territory or diocese of the Catholic Church in Nigeria. The episcopal see is Port Harcourt, Rivers State. The Diocese of Port Harcourt is in the ecclesiastical province of metropolitan Archdiocese of Calabar.
History May 16, 1961: Established as Diocese of Port Harcourt from the Diocese of Owerri
Special churches The diocesan cathedral is Corpus Christi Cathedral located in D-line, Port Harcourt.
Bishops Bishops of Port Harcourt Bishop Godfrey Okoye, C.S.Sp. (1961.05.16 – 1970.03.07), appointed Bishop of Enugu Bishop Alexius Obabu Makozi (1991.08.31 - 2009.05.04) Bishop Camillus Archibong Etokudoh (since 2009.05.04 - 2025.04.09)
Auxiliary Bishops Bishop Patrick Eluke (since 12 February 2019)
Apostolic Administrator Bishop Patrick S. Eluke (since 9 April 2025)
See also Roman Catholicism in Nigeria List of Roman Catholic churches in Port Harcourt
Sources GCatholic.org Information Catholic Hierarchy