The Diocese of Jericó (Latin: Dioecesis Iericoënsis) is a Latin Church ecclesiastical territory or diocese of the Catholic Church in Western Colombia. It is a suffragan diocese in the ecclesiastical province of the metropolitan Archdiocese of Medellín.

• 29 January 1915: Established as Diocese of Jericó, on territory split off from the Metropolitan Archdiocese of Medellin
• 5 February 1917: Suppressed, its territory and title being merged into the then Diocese of Antioquia-Jericó (now Archdiocese of Santa Fe de Antioquia)
• 3 July 1941: Restored as Diocese of Jericó, regaining its territory from the above Diocese of Antioquía–Jericó.

As of 2015, it pastorally served 262,951 Catholics (98.1% of 268,000 total population) on 3,000 km in 33 parishes and 35 missions with 76 priests (diocesan), 2 deacons, 106 lay religious (106 sisters) and 25 seminarians.

• Its cathedral is the Catedral de Nuestra Señora de las Mercedes, dedicated to Our Lady of Mercy, in the episcopal see of Jericó, in the Colombian department of Antioquia
• It further has a Minor Basilica (also Marian) : Basilica of the Immaculate Conception, at Jardín

Suffragan Bishops of Jericó

• Apostolic Administrator Maximiliano Crespo Rivera (1915 – 7 Feb 1917), while Bishop of Antioquía (1911.10.10 – 1917.02.05); next Bishop of Santa Rosa de Osos (Colombia) (1917.02.07 – 1923.11.15), Metropolitan Archbishop of Popayán (Colombia) (1923.11.15 – death 1940.11.07)
• Antonio José Jaramillo Tobón (7 Feb 1942 – retired 31 March 1960), emeritate as Titular Archbishop of Cotrada (1960.03.31 – death 1969.04.27)
• Augusto Trujillo Arango † (31 Mar 1960 – 20 Feb 1970), next Metropolitan Archbishop of Tunja (Colombia) (1970.02.20 – retired 1998.02.02), died 2007; previously Titular Bishop of Nisyrus (1957.04.25 – 1960.03.31) as Auxiliary Bishop of Manizales (Colombia) (1957.04.25 – 1960.03.31)
• Juan Eliseo Mojica Oliveros (4 June 1970 – 26 April 1977), next Bishop of Garagoa (Colombia) (1977.04.26 – death 1989.12.27); previously Titular Bishop of Baliana (1967.02.20 – 1970.06.04) as Auxiliary Bishop of Archdiocese of Tunja (Colombia) (1967.02.20 – 1970.06.04)
• Augusto Aristizábal Ospina (29 Oct 1977 – retired 7 Oct 2003) died 2004; previously Titular Bishop of Ceramussa (1969.06.02 – 1977.10.29) as Auxiliary Bishop of Archdiocese of Cali (Colombia) (1969.06.02 – 1977.10.29)
• José Roberto López Londoño (7 Oct 2003 – retired June 2013); previously Titular Bishop of Urbisaglia (1982.05.24 – 1987.05.09) as Auxiliary Bishop of Archdiocese of Medellin (Colombia) (1982.05.24 – 1987.05.09), Bishop of Armenia (Colombia) (1987.05.09 – 2003.10.07)
• Noel Londoño Antonio Buitrago, C.SS.R. (10 August 2013– ...), also Apostolic Commissioner of Sodalitium of Christian Life (2018.01.10 – ...).

Other priests of this diocese who became bishop

• José Luis Henao Cadavid, appointed Bishop of Líbano-Honda in 2015

• List of Catholic dioceses in Colombia
• Roman Catholicism in Colombia

• GCatholic.org, with Google map & satellite HQ picture - data for all sections
• Catholic Hierarchy

5°47′28″N 75°47′12″W / 5.7912°N 75.7866°W / 5.7912; -75.7866