Roman Catholic Archdiocese of Seoul

Archdiocese of Seoul

Archidioecesis Seulensis

서울 대교구
Cathedral of the Virgin Mary of the Immaculate Conception (Mother church)
CountrySouth Korea
Area17,349 km2 (6,698 sq mi)
- Total
- Catholics
(as of 2017)
1,534,899[2] (15.07%)
RiteLatin Rite
CathedralCathedral of the Blessed Virgin Mary of the Immaculate Conception in Seoul
Current leadership
Metropolitan ArchbishopAndrew Yeom Sou-jeong
SuffragansDiocese of Chuncheon
Diocese of Daejeon
Diocese of Hamhung
Diocese of Incheon
Diocese of Pyongyang
Diocese of Suwon
Diocese of Uijeongbu
Diocese of Wonju
Auxiliary BishopsBasil Cho Kyu-man
Timothy Yu Gyoung-chon
Peter Chung Soon-taek
Benedictus Son Hee-Song
Bishops emeritusNicolas Cheong Jin-suk Cardinal Archbishop Emeritus (2006-2012)
Archdiocese of Seoul.svg
Website of the Archdiocese

The Roman Catholic Archdiocese of Seoul (Latin: Archidioecesis Seulum, Korean: 서울 대교구) is a Metropolitan archdiocese of the Latin Rite of the Roman Catholic Church comprising the metropolitan area of Seoul, South Korea, whose province comprises parts of South Korea (which has two more provinces) and all North Korea, yet depends on the missionary Roman Congregation for the Evangelization of Peoples.

Its Metropolitan bishop as the Archbishop of Seoul resides at his Myeongdong Cathedral in Jung-gu, Seoul. The Archbishop of Seoul is also the Apostolic Administrator of the Diocese of Pyongyang in North Korea. As the episcopal see is the oldest one in Korea and that of its capital city, he is often considered to be so called the Primate of Korea, though the official title has not been expressly granted by the Holy See by canonical decree.

There are 57 Catholic secretly active parishes in North Korea, but due to the current regime in place, no Catholic priests are permitted permanent residency at current time.


As per 2014, it pastorally served 1,472,815 Catholics (14.5% of 10,143,645 total) on 17,349 km² in 229 parishes and 183 missions with 908 priests (683 diocesan, 225 religious), 2,282 religious (445 brothers, 1,837 sisters) and 266 seminarians.