Yen Chia-kan, Chinese lawyer and politician, President of the Republic of China (d. 1993)

Yen Chia-kan (Chinese: 嚴家淦; pinyin: Yán Jiāgàn; Wade–Giles: Yen2 Chia1-kan4; 23 October 1905 – 24 December 1993), also known as C. K. Yen, was a Kuomintang politician. He succeeded Chiang Kai-shek as President of the Republic of China on 5 April 1975, being sworn in on 6 April 1975, and served out the remainder of Chiang's term until 20 May 1978.