The Roman Catholic Archdiocese of Guadalajara (Latin: Archidioecesis Guadalaiarensis) is an archdiocese of the Catholic Church based in the Mexican city of Guadalajara, Jalisco.

It currently covers an area of 20,827 km² (8,044 Square Miles).

The diocese was erected on 13 July 1548 on territory split off from then Diocese of Michoacán, elevated to Archdiocese on 26 January 1863,[2][3] and is the Metropolitan see of the suffragan sees of Aguascalientes, Autlán, Ciudad Guzmán, Colima, Jesús Maria del Nayar (a Territorial Prelature), San Juan de los Lagos and Tepic.

Erected: 13 July 1548 Elevated: 26 January 1863