| Jurisdiction: | Metropolitan Archdiocese |
| Port of Spain | |
| Latin: | Archidioecesis Metropolitae Portus Hispaniae |
| Country: |  Trinidad and Tobago |
| Province: | Port of Spain |
| Area Sqmi: | 5,128 |
| Population: | 1,310,000 |
| Population As Of: | 2010 |
| Catholics: | 340,000 |
| Catholics Percent: | 26 |
| Denomination: | Roman Catholic |
| Rite: | Roman Rite |
| Established: | April 30, 1850 (years ago) |
| Cathedral: | Cathedral Basilica of the Immaculate Conception in Port of Spain |
| Patron: | Immaculate Conception |
| Metro Archbishop: | Charles Jason Gordon |
| Bishop Title: | Archbishop |
| Vicar General: | Fr. Martin Sirju |
| Emeritus Bishops: | Joseph Everard Harris, CSSp Edward Joseph Gilbert, CSsR |
| Website: | Website of the Archdiocese |
The Roman Catholic Metropolitan Archdiocese of Port of Spain (la|Archidioecesis Metropolitae Portus Hispaniae) is a metropolitan diocese of the Latin Church of the Roman Catholic Church in the Caribbean. The archdiocese encompasses the entirety of the former Spanish dependency of Trinidad, including the islands of Trinidad and Tobago. The archdiocese is the Metropolitan responsible for the suffragan Dioceses of Bridgetown, Georgetown, Paramaribo and Willemstad, and is a member of the Antilles Episcopal Conference.
The diocese of Port of Spain was originally erected as a vicariate apostolic in 1818 and elevated to an archdiocese in April 1830.
The archdiocese has its own special-purpose company, Catholic Media Services Limited (CAMSEL), responsible for coordinating communications.The diocesan weekly newspaper, Catholic News, has been published in Trinidad since 1892 and since 2006 has been published by CAMSEL.
There is also a local TV station which operates under the aegis of the archdiocese but is independently owned and operated by the Living Water Community, a public association of Christian Faithful founded in Trinidad.
The vicar for communications is Fr. Robert Christo.
The archdiocese is divided into six regions known as vicariates and each headed by a regional episcopal vicar.