Deputy Prime Minister of South Korea in the context of Koo Yun-cheol

On 14 December 2024, Yoon Suk Yeol, the president of South Korea, was impeached by the National Assembly following the passage of an impeachment bill with 204 of the 300 members voting in favor. This action came in response to Yoon's declaration of martial law on 3 December 2024.

Prime Minister Han Duck-soo assumed the role of acting president pending the Constitutional Court's decision on whether to accept the impeachment. Han was himself impeached on 27 December 2024, and first deputy prime minister Choi Sang-mok became acting president. On 24 March 2025, Han was acquitted by the Constitutional Court and returned to the role of acting president.

Choi Sang-mok (Korean: 최상목, born 7 June 1963) is a South Korean politician who served as the acting president and acting prime minister of South Korea from December 2024 to March 2025, following the impeachment of Han Duck-soo, which was subsequently overturned by the Constitutional Court.

Choi served as the deputy prime minister and the minister of economy and finance from December 2023 to May 2025. Choi was initially expected to assume the acting presidency and prime ministership again on 2 May, when Han resigned to run for president, but resigned on the night of 1 May, ahead of an anticipated impeachment vote in the National Assembly. Therefore, Deputy Prime Minister and Minister of Education Lee Ju-ho assumed the acting presidency.