Moon Jae-in (Korean: 문재인, pronounced [mun.dʑɛ.in] ; born 24 January 1953) is a South Korean politician and lawyer who served as the 12th president of South Korea from 2017 to 2022. A member of the Democratic Party of Korea (DPK), he was the party's leader from 2015 to 2016 and also represented Sasang in the National Assembly from 2012 to 2016. Before his presidency, he served as the senior secretary for civil affairs and the chief of staff to President Roh Moo-hyun.
Born in Geoje to North Korean refugees, Moon was raised in poverty in Busan. He excelled in school and studied law at Kyung Hee University. He became a lawyer and was involved in human rights activism with Roh Moo-hyun. He was imprisoned for organizing a protest against the Yushin Constitution. As a result of his work in human rights law, Moon was chosen to be Roh's campaign manager in the 2002 presidential election. He served in Roh's administration in various official capacities. In 2012, Moon was a candidate for the Democratic United Party in the 2012 presidential election, which he lost to Park Geun Hye.