The Roman Catholic Diocese of Ciudad Juárez (Latin: Dioecesis Civitatis Iuarezensis) is located in the northern Mexican city of the same name, across the Río Grande from El Paso, Texas.

Pope Pius named Manuel Talamás Camandari [3] as the first bishop, and by 1966 he was overseeing a diocese of 565,000 faithful.

Juan Sandoval Íñiguez[4] was selected by Pope John Paul II to succeed Talamás as second bishop on 11 July 1992, but remained for less than two years before being transferred to Guadalajara to replace the assassinated archbishop, Cardinal Juan Jesús Posadas Ocampo on 21 April 1994.

His successor was Renato Ascencio León [5], who had been subsequently the bishop of the neighboring Diocese of Cuauhtémoc-Madera, Chihuahua.

Bishop Ascencio was installed on 7 October 1994, and administers a diocese with a Catholic population(2006) of 2,179,000.