The Roman Catholic Diocese of Callao () is a diocese located in the city of Callao in the ecclesiastical province of Lima in Peru.

History 29 April 1967: Established as Diocese of Callao from the Metropolitan Archdiocese of Lima

Bishops Ordinaries Eduardo Picher Peña (3 August 1967 – 31 May 1971), appointed Archbishop of Huancayo Luis Vallejos Santoni (20 September 1971 – 14 January 1975), appointed Archbishop of Cuzco Ricardo Durand Flórez, S.J. (14 January 1975 – 17 August 1995), Archbishop (personal title) Miguel Irízar Campos, C.P. (17 August 1995 – 12 December 2011) José Luis Del Palacio y Pérez-Medel (12 December 2011 – 15 April 2020) Luis Alberto Barrera Pacheco, M.C.C.I (17 April 2021 – present)

Coadjutor bishop Miguel Irizar Campos, C.P. (1989 – 1995)

Auxiliary bishop Javier Augusto Del Río Alba (2004 – 2006), appointed Coadjutor Archbishop of Arequipa Miguel Ángel Contreras Llajaruna, S.M. (2025 – present)

See also Roman Catholicism in Peru

Sources GCatholic.org Catholic Hierarchy Diocese website