Yen Chia-kan (Chinese: 嚴家淦; pinyin: Yán Jiāgàn; October 23, 1905 – December 24, 1993), also known as C. K. Yen, was a Taiwanese politician. He succeeded Chiang Kai-shek as President of the Republic of China upon Chiang's death on April 5, 1975. He served out the remainder of Chiang's term until May 20, 1978.