The Roman Catholic Diocese of Christchurch (Dioecesis Christopolitana) is a suffragan diocese of the Archdiocese of Wellington. Its cathedral and see city are located in Christchurch, the largest city in the South Island of New Zealand. It was formed on 5 May 1887 from a portion of the territory of the Diocese of Wellington, which was elevated to archdiocese later that same month.

Bishops of Christchurch

Lyons was translated to become Auxiliary Bishop of Sydney, Australia in 1950. Martin was appointed Coadjutor Archbishop of Wellington, New Zealand in 2021.

Current bishop

Bishops other than ordinaries

Coadjutor bishops

Auxiliary bishops

Affiliated bishops

Cathedral and churches

Cathedrals

Pro-cathedral

Churches

Secondary schools