Jurisdiction | Cathedral | Type |
| Andong 안동 | Mokseong-dong Cathedral of the Immaculate Conception  Andong 안동시, Gyeongsangbuk-do 경상북도, South Korea  |  Cathedral |
| Busan 부산 | Namcheon Cathedral of St. Paul Chong Hasang Busan 부산시, Busan-gwangyeoksi 부산광역시, South Korea | Cathedral |
| Busan 부산 | Jung-ang Co-Cathedral of the Holy Cross Busan 부산시, Busan-gwangyeoksi 부산광역시, South Korea |  Co-Cathedral |
| Cheongju 청주 | Naedeok-dong Cathedral of the Holy Family Cheongju 청주시, Chungcheongbuk-do 충청북도, South Korea | Cathedral |
| Chuncheon 춘천 | Jungnim-dong Cathedral of the Sacred Heart of Jesus Chuncheon 춘천시, Gangwon-do 강원도, South Korea | Cathedral |
| Daegu 대구 | Gyesan-dong Cathedral of Our Lady of Lourdes Daegu 대구시, Daegu-gwangyeoksi 대구광역시, South Korea | Cathedral |
| Daegu 대구 | Beomeo Cathedral of St. Francis of Assisi Daegu 대구시, Daegu-gwangyeoksi 대구광역시, South Korea | Co-Cathedral |
| Daejeon 대전 | Daeheung-dong Cathedral of St. Joseph the Worker Daejeon 대전시, Daejeon-gwangyeoksi 대전광역시, South Korea | Cathedral |
| Gwangju 광주 | Imdong Cathedral of the Sacred Heart of Jesus Gwangju 광주시, Gwangju-gwangyeoksi 광주광역시, South Korea | Cathedral |
| Gwangju 광주 | Bukdong Co-Cathedral of the Sacred Heart of Jesus Gwangju 광주시, Gwangju-gwangyeoksi 광주광역시, South Korea | Co-Cathedral |
| Incheon 인천 | Dapdong Cathedral of St. Paul Incheon 인천시, Incheon-gwangyeoksi 인천광역시, South Korea | Cathedral |
| Jeju 제주 | Jungang Cathedral of the Immaculate Conception of Mary Jeju 제주시, Jeju-teukbyeoljachido 제주특별자치도, South Korea | Cathedral |
| Jeonju 전주 | Joongang Cathedral of the Sacred Heart of Jesus Jeonju 전주시, Jeollabuk-do 전라북도, South Korea | Cathedral |
| Jeonju 전주 | Jeondong Church of the Sacred Heart of Jesus Jeonju 전주시, Jeollabuk-do 전라북도, South Korea |  Former Cathedral |
| Masan 마산 | Yangdok-dong Cathedral of the Sacred Heart Changwon 창원시, Gyeongsangnam-do 경상남도, South Korea | Cathedral |
| Military Ordinariate of South Korea | Armed Forces Central Cathedral Seoul 서울시, Seoul-teukbyeolsi 서울특별시, South Korea | Cathedral |
| Pyong-yang 평양 | Changchung Cathedral Pyongyang 평양, P’yŏngyang (Phyeongyang), North Korea  | Cathedral |
| Seoul 서울 | Myeong-dong Cathedral of the Immaculate Conception of Mary Seoul 서울시, Seoul-teukbyeolsi 서울특별시, South Korea | Cathedral |
| Suwon 수원 | Jeongjadong Cathedral of the Holy Martyrs of Korea Suwon 수원시, Gyeonggi-do 경기도, South Korea | Cathedral |
| Suwon 수원 | Jowondong Co-Cathedral of the Queen of Peace Suwon 수원시, Gyeonggi-do 경기도, South Korea | Co-Cathedral |
| Tŏkwon 덕원 | Tokwon Abbey of St. Benedict Tokwon 덕원, Kangwŏn-do (Kangweonto), North Korea | Cathedral, Abbatial, Shrine |
| Uijeongbu 의정부 | Uijeongbu Cathedral of the Sacred Heart of Mary Uijeongbu 의정부시, Gyeonggi-do 경기도, South Korea | Cathedral |
| Wonju 원주 | Wondong Cathedral of Our Lady of Grace Wonju 원주시, Gangwon-do 강원도, South Korea | Cathedral |
