Yuan Tseh Lee (Chinese: 李遠哲; pinyin: Lǐ Yuǎnzhé; Wade–Giles: Li³ Yüan³-che²; Pe̍h-ōe-jī: Lí Oán-tiat; born 19 November 1936) is a Taiwanese chemist. He is a professor emeritus at the University of California, Berkeley and honorary director of the Nagoya University Institute for Advanced Study along with Ryoji Noyori.[1][2][3][4] He was the first Taiwanese Nobel Prize laureate who, along with the Hungarian-Canadian John C. Polanyi and American Dudley R. Herschbach, won the Nobel Prize in Chemistry in 1986 "for their contributions to the dynamics of chemical elementary processes".[3][5]
Lee's particular physical chemistry work was related to the use of advanced chemical kinetics techniques to investigate and manipulate the behavior of chemical reactions using crossed molecular beams.[3][5] From 15 January 1994 to 19 October 2006, Lee served as the President of the Academia Sinica of Taiwan.[4] In 2011, he was elected head of the International Council for Science.[4]