The Roman Catholic Archdiocese of Huancayo (Latin: Huancayen(sis)) is a Latin Metropolitan archdiocese in Peru's western Amazonian Junín Region.
Its cathedral episcopal see is Catedral de la Santísima Trinidad (dedicated to the Holy Trinity) in the city of Huancayo.
Established on 18 December 1944 as Diocese of Huancayo on territory split off from the Diocese of HuánucoLost territory on 15 May 1585 to establish the Territorial Prelature of Tarma30 June 1966: Promoted as Metropolitan Archdiocese of Huancayo(all Roman Rite, mostly secular priests)
Bishops of HuancayoBishop Leonardo José Rodriguez Ballón, Friars Minor (O.F.M.) (1945.07.06 – 1946.06.13), previously Titular Bishop of Isinda & Auxiliary Bishop of Lima (Peru) (1943.12.30 – 1945.07.06), afterward Metropolitan Archbishop of Arequipa (Peru) (1946.06.13 – 1980.07.07)Bishop Daniel Figueroa Villón (1946.09.22 – 1956.12.17), previously Titular Bishop of Parnassus & Auxiliary Bishop of Arequipa (1945.04.12 – 1946.09.22), afterward Bishop of Chiclayo (Peru) (1956.12.17 – 1967.01.30)bishop Mariano Jacinto Valdivia y Ortiz (1956.12.17 – 1966.06.30 see below), previously Bishop of Huaraz (Peru) (1940.12.15 – 1956.12.17)Archbishops of HuancayoArchbishop Mariano Jacinto Valdivia y Ortiz (see above 1966.06.30 – 1971.02.10)Archbishop Eduardo Picher Peña (1971.05.31 – 1984.06.14), previously Bishop of Callao (Peru) (1967.08.03 – 1971.05.31), afterward Titular Archbishop of Abitinæ (1984.06.14 – 2002.11.30) and first Military Vicar (1984.06.14 – 1986.07.21), then Military Ordinary of Peru's armed forces (1986.07.21 – 1996.02.06)Archbishop Emilio Vallebuona Merea, Salesians (S.D.B.) (1985.08.30 – 1991.11.28), previously Titular Bishop of Numana (1975.10.21 – 1978.01.18), Auxiliary Bishop of Piura (Peru) (1975.10.21 – 1978.01.18), Bishop of Huaraz (Peru) (1978.01.18 – 1985.08.30)Archbishop José Paulino Ríos Reynoso (1995.12.02 – 2003.11.29), afterward Metropolitan Archbishop of Arequipa (Peru) (2003.11.29 – 2006.10.20)Archbishop Pedro Ricardo Barreto Jimeno, Jesuits (S.J.) (2004.07.17 – ...), ; previously Titular Bishop of Acufida & Apostolic Vicar of Jaén en Perú (Peru) (2001.11.21 – 2004.07.17), Apostolic Administrator of Jaén en Perú (Peru) (2004.07.17 – 2005.11.11)Apart from the Metropolitan Archdiocese, its province comprises two Suffragan dioceses
Huánuco, from which Huancayo was split offTarma, split off from Huancayo