Moon Jae-in 문재인 14th President of South Korea Incumbent Assumed office 10 May 2017 Prime Minister Hwang Kyo-ahn Lee Nak-yeon (Designate) Preceded by Hwang Kyo-ahn (acting) Leader of the Democratic Party In office 9 February 2015 – 27 January 2016 Preceded by Ahn Cheol-soo Kim Han-gil Succeeded by Kim Chong-in Member of the National Assembly from Sasang In office 30 May 2012 – 29 May 2016 Preceded by Chang Je-won Succeeded by Chang Je-won Personal details Born (1953-01-24) 24 January 1953 Geoje, South Korea Political party Democratic Party Spouse(s) Kim Jung-sook Children 2 Alma mater Kyung Hee University (LLB) Signature Military service Allegiance South Korea Service/branch Republic of Korea Army Years of service 1975–1977 Rank Byeongjang (Sergeant)