Marie-Nicolas-Antoine Daveluy was a French missionary and Catholic bishop who served as the Vicar Apostolic of Korea. Born in Amiens in 1818, he joined the Paris Foreign Missions Society and traveled to East Asia in 1844. After arriving in Korea, he became a prominent scholar of the local language, producing a Korean-French dictionary and various religious texts. He was eventually appointed a titular bishop, later succeeding Bishop Berneux as the leader of the mission during a period of intense persecution.