The Roman Catholic Diocese of Daejeon (, Hangul: 천주교 대전교구) is a diocese of the Latin Church of the Catholic church in South Korea. It is the diocese for Daejeon, South Korea. Augustinus Kim Jong-soo has been appointed its bishop; Stephanus Han Jung-hyun is auxiliary bishop. History On 23 June 1958 Pope Pius XII erected the apostolic vicariate of Daejeon. The vicariate was made a diocese on 10 March 1962 by Pope John XXIII. Leadership Ordinaries Apostolic Vicars of Daijeon Adrien-Joseph Larribeau, M.E.P. (1958–1962) Bishops of Daejeon Adrien-Joseph Larribeau, M.E.P. (1962–1965) Peter Hwang Min Syeng (1965–1984) Joseph Kyeong Kap-ryong (1984–2005) Lazarus You Heung-sik (2005–2021) Augustinus Kim Jong-soo (2022–present) Coadjutor bishops Lazarus You Heung-sik (2003–2005) Auxiliary bishops Augustinus Kim Jong-soo (2009–2022) Stephanus Han Jung-hyun (2020–present) References Christian organizations established in 1958 Daejeon Daejon Daejeon 1958 establishments in South Korea Roman Catholic Ecclesiastical Province of Seoul