The Roman Catholic Diocese of Cleveland (Latin: Dioecesis Clevelandensis) is a Roman Catholic diocese in Ohio. It was erected on April 23 1847 by Pope Pius IX. The diocese lost territory in 1910 when the Diocese of Toledo was erected by Pope Pius X and in 1943 when the Diocese of Youngstown was erected by Pope Pius XII.
Ashland County Ohio, Cuyahoga County Ohio, Geauga County Ohio, Lake County Ohio, Lorain County Ohio, Medina County Ohio, Summit County Ohio, Wayne County Ohio
