The Diocese of Linares in Mexico () is a Latin Church ecclesiastical territory or diocese of the Catholic Church in Mexico. The diocese is a suffragan in the ecclesiastical province of the metropolitan Archdiocese of Monterrey that was founded in 1777 with the name of Diocese of Linares (name changed in Monterrey in 1922). The new Diocese of Linares was erected on 30 April 1962. The cathedra is found in the Linares Cathedral in the episcopal see of Linares, Nuevo León.