The Roman Catholic Archdiocese of Lanzhou (Latin: Lanceuven(sis), simplified Chinese: 兰州 / 皋兰; traditional Chinese: 蘭州 /皋蘭; pinyin: Lánzhōu / Gāolán) is a Latin Metropolitan Archdiocese of the Catholic church with an Ecclesiastical province, yet depends on the missionary Roman Congregation for the Evangelization of Peoples. Its archiepiscopal see is the Cathedral of the Sacred Heart located in the city of Lanzhou, Gansu province. No statistics available.