The Archdiocese of Monterrey (Latin: Archidioecesis Monterreyensis) is a Latin Church ecclesiastical territory or archdiocese of the Catholic Church located in Monterrey, Nuevo León, Mexico.

The Archdiocese of Monterrey is a metropolitan see; its suffragan dioceses are the Ciudad Victoria, Linares, Matamoros, Nuevo Laredo, Piedras Negras, Saltillo and Tampico.

[1] The Diocese of Monterrey was erected by Papal Bull "Relata Semper" by Pope Pius VI on December 15, 1777.

It encompassed the modern states of Nuevo Leon, Coahuila, Tamaulipas and Texas.

It was first called the Diocese of Linares, then Linares-Monterrey.