The Diocese of Thanh Hóa is a Roman Catholic diocese of Vietnam. The bishop since 2018 is Joseph Nguyễn Đức Cường. Of the three million persons living in its area about 3% are Roman Catholics.
The Diocese of Galway, Kilmacduagh and Kilfenora is a Latin Church diocese of the Catholic Church in the west of Ireland. It is in the ecclesiastical province of Tuam and is subject to the Metropolitan Archdiocese of Tuam. The deanery of Kilfenora, previously a diocese in its own right, lies in the ecclesiastical province of Cashel. The ordinary is Bishop Michael Duignan who was appointed on 11 February 2022.
The Metropolitan Archdiocese of Hanoi is a Catholic metropolitan archdiocese of Vietnam. It is one of the earliest in the history of the Catholic Church in Vietnam.
The Metropolitan Archdiocese of Saigon or Archdiocese of Ho Chi Minh City is a Roman Catholic ecclesiastical territory in the south of Vietnam. By far the largest diocese in the country by population of people and second in the number of Catholics, yet like most big cities it only covers a small area of 2,390 km2 (920 sq mi).
The Archdiocese of Huế is a Roman Catholic Archdiocese in central Vietnam.
The diocese of Bùi Chu is a Roman Catholic diocese of Vietnam. It encompasses 4/5 of Nam Định Province in terms of area, including the six districts of Xuân Trường, Giao Thủy, Hải Hậu, Nghĩa Hưng, Trực Ninh, and Nam Trực and part of Nam Định city. The current bishop of the diocese since August 2013 is Thomas Aquinas Vũ Đình Hiệu.
The diocese of Hải Phòng is a Roman Catholic diocese in northern Vietnam. The bishop is Vincent Nguyên Văn Ban, since 2022.
The diocese of Hưng Hóa is a Roman Catholic diocese of Vietnam.
The diocese of Lạng Sơn and Cao Bằng is a Roman Catholic diocese in northern Vietnam's Lạng Sơn and Cao Bằng provinces.
The Diocese of Phát Diệm is a Roman Catholic diocese of Vietnam.
The diocese of Qui Nhơn is a Roman Catholic diocese in central Vietnam. The Bishop is Pierre Nguyễn Soạn, since 1999; Father Matthieu Nguyen Van Khoi, pastor of Assumption Cathedral in Quy Nhơn and professor at the "Maria Stella" Seminary of Nha Trang, was appointed Coadjutor Bishop-elect of the diocese by Pope Benedict XVI on December 31, 2009. He will be ordained at a later date; as coadjutor bishop to Bishop Soan, he serves as an auxiliary bishop and vicar general of the diocese but also, by canon law, has the right to automatically succeed him upon his death, retirement, or incapacitation.
The Diocese of Vinh is a Roman Catholic diocese in central Vietnam. The Most Reverend Alphonse Nguyễn Hữu Long was appointed bishop on December 22, 2018.
The Roman Catholic Diocese of Zipaquirá is a diocese located in the city of Zipaquirá in the ecclesiastical province of Bogotá in Colombia.
The Roman Catholic Metropolitan Archdiocese of Chongqing is a Latin Catholic Metropolitan archdiocese located in southwestern China, yet still depends on the missionary Roman Congregation for the Evangelization of Peoples. The Archbishop of Chongqing is the primate of the Catholic Church in Sichuan (Szechwan).
The Archdiocese of Shenyang is a Latin Metropolitan archdiocese in northeastern PR China.
The Roman Catholic Diocese of Ningxia/Yinchuan 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.
The Roman Catholic Diocese of Tianjin/Tíentsín is a suffragan diocese in the ecclesiastical province of the Metropolitan Archbishop of Beijing in PR China.
The Roman Catholic Diocese of Yongping/Lulong is a Latin diocese in the ecclesiastical province of Beijing in PR China, without canonically mandated Ordinary since decades.
The Roman Catholic Diocese of Chengdu is a suffragan Latin Catholic diocese in the ecclesiastical province of Chongqing covering southwestern China's Sichuan area, yet depends on the missionary Roman Congregation for the Evangelization of Peoples.
The Apostolic Vicariate of Grave–Nijmegen was a short-lived pre-diocesan Latin Catholic jurisdiction in southern parts of the present Netherlands.
Vietnam 
