Syngman Rhee was a South Korean politician who served as the first president of South Korea from 1948 to 1960. Rhee is also known by his art name Unam. Rhee was also the first and last president of the Provisional Government of the Republic of Korea from 1919 to his impeachment in 1925 and from 1947 to 1948. As president of South Korea, Rhee's government was characterised by authoritarianism, limited economic development, and in the late 1950s growing political instability and public opposition.

The president of the Republic of Korea, also known as the president of South Korea (Korean: 대통령), is the head of state and head of government of the Republic of Korea. The president leads the State Council, and is the chief of the executive branch of the national government as well as the commander-in-chief of the Republic of Korea Armed Forces.