The Roman Catholic Diocese of San Marcos (erected 10 March 1951) is a suffragan diocese of the Archdiocese of Los Altos Quetzaltenango-Totonicapán.
Bishops Ordinaries Celestino Miguel Fernández Pérez, OFM (1955–1971) Próspero Penados del Barrio (1971–1983), appointed Archbishop of Guatemala Julio Amílcar Bethancourt Fioravanti (1984–1988), appointed Bishop of Huehuetenango Álvaro Leonel Ramazzini Imeri (1988–2012), appointed Bishop of Huehuetenango on 14 May 2012; future Cardinal Carlos Enrique Trinidad Gómez (2014–2018) Bernabé de Jesús Sagastume Lemus, OFMCap (2021–present)
Auxiliary bishops Próspero Penados del Barrio (1966–1971), appointed bishop
Other priest of this diocese who became bishop Félix Eduardo Antonio Calderón Cruz, appointed Bishop of San Francisco de Asís de Jutiapa in 2016
Territorial losses Year Along with To form 1961 Territorial Prelature of Huehuetenango
References