The Roman Catholic Diocese of Cheongju (Lat: Dioecesis Cheongiuensis) is a diocese of the Latin Rite of the Roman Catholic Church in South Korea.
Erected in 1958, as the Diocese of Cheong-ju, the name of the diocese was changed to the Diocese of Cheongju in 1962. The diocese is suffragan to the Archdiocese of Daegu.
The current bishop is Gabriel Chang Bong-hun, appointed in 1999.