The Diocese of San Isidro de El General (Latin: Dioecesis Sancti Isidori is a Latin Church ecclesiastical territory or diocese of the Catholic Church in Costa Rica. It is a suffragan diocese in the ecclesiastical province of the metropolitan Archdiocese of San José de Costa Rica. It was erected as a diocese on 19 August 1954.
Delfín Quesada Castro (1954−1974)
Ignacio Nazareno Trejos Picado (1974−2003)
Guillermo Loría Garita (2003−2013)
Gabriel Enrique Montero Umaña, O.F.M. Conv. (2013–2021)
Juan Miguel Castro Rojas (2021–present)
Other priest of this diocese who became bishop
Hugo Barrantes Ureña, appointed Bishop of Puntarenas in 1998