| Jurisdiction: | Archdiocese |
| Monrovia | |
| Latin: | Archidioecesis Monroviensis |
| Country: | Liberia |
| Province: | Monrovia |
| Area Sqmi: | 6,168 |
| Population: | 2,058,000 |
| Population As Of: | 2013 |
| Catholics: | 140,705 |
| Catholics Percent: | 6.8 |
| Parishes: | 30 |
| Denomination: | Catholic Church |
| Sui Iuris Church: | Latin Church |
| Rite: | Roman Rite |
| Established: | 18 April 1903 |
| Priests: | 27 (2013) |
| Bishop Title: | Archbishop-elect |
| Metro Archbishop: | Gabriel Blamo Jubwe |
| Map: | Liberia - Arcidiocesi di Monrovia.png |
The Archdiocese of Monrovia (Archidioecesis Monroviensis) is Latin Church ecclesiastical territory or archdiocese of the Catholic Church in Liberia. It was elevated to an archdiocese in December 1981. It was initially established as the Prefecture Apostolic of Liberia in 1903, being separated from the Apostolic Vicariate of Sierra Leone (which is now the Archdiocese of Freetown and Bo). Until Saturday, February 12, 2011, the Archdiocese of Monrovia had been headed by Michael Kpakala Francis, who had been Monrovia's archbishop since its elevation in 1981, but Vatican Information Service (VIS) stated that he resigned that day for reasons of age and was succeeded immediately by his Coadjutor Archbishop, Lewis Jerome Zeigler.
According to church statistics, the percentage of Catholics under the archdiocese has risen to 8.2% of the total population in 2004 out of a total of approximately 1.6 million people. The Diocese of Cape Palmas was created from it in 1981. The Diocese of Gbarnga was created from it in 1986.