Roman Catholic Archdiocese of Taipei

The Roman Catholic Archdiocese of Taipei () is a diocese of the Roman Catholic Church in Taiwan. Pope Pius XII erected it as the Apostolic Prefecture of Taipei on 30 December 1949. On 7 August 1952, it was elevated to an archdiocese, with the suffragan sees of Chiayi, Hsinchu, Hualien, Kaohsiung, Taichung, and Tainan.
The archdiocese's cathedral is the Cathedral of the Immaculate Conception. As the only metropolitan in Taiwan, it is the principal episcopal see of that country. Pope Francis accepted the mandatory resignation of John Hung Shan-chuan upon reaching retirement age and appointed Thomas Chung An-zu as Archbishop of Taipei on 23 May 2020. For many years, each person appointed Archbishop of Taipei has also been appointed as Apostolic Administrator of the Kinmen and Matsu islands, which form part of the Diocese of Xiamen.