The first lady of the Republic of Korea, commonly known as the first lady of South Korea, is the title held by the hostess of the presidential residence, usually the wife of the president of South Korea.

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.