The Roman Catholic Diocese of Ningxia/Yinchuan (Latin: Nimsciian(us), simplified Chinese: 宁夏/银川; traditional Chinese: 寧夏/銀川; pinyin: Níngxià/Yínchuān) is a Latin rite suffragan diocese in the Ecclesiastical province of the Metropolitan Archbishopric of Suiyuan, in north(west)ern China, but depends on the missionary Roman Congregation for the Evangelization of Peoples. No statistics available. Its episcopal see is the Cathedral of the Immaculate Heart of Mary, located in the city of Yinchuan, Ningxia autonomous region.