Yuan-Pern Lee (Chinese: 李遠鵬; pinyin: Lǐ Yuǎnpéng; born 25 January 1952) is a Taiwanese chemist.

Lee was born on 25 January 1952 in Hsinchu, Taiwan,^[1] the youngest of painter Lee Tze-fan's three sons. Lee studied chemistry at National Taiwan University and pursued a doctorate in the subject from the University of California, Berkeley. He began a research career in 1979 at the National Oceanic and Atmospheric Administration before accepting a teaching position at National Tsing Hua University in 1981.^[2][1] Lee was named a fellow of the American Physical Society in 1999,^[1][2] and subsequently considered multiple times for membership in the Academia Sinica.^[3][4] Eventually, Yuan-Pern Lee was inducted into Academia Sinica in 2008,^[2] and the Lees became the first family to have three members serve simultaneously as academicians of Academia Sinica.^[4] Yuan-Pern Lee's induction followed that of his brothers Yuan-Chuan Lee and Yuan T. Lee.^[3] Yuan-Pern Lee's association with the Academia Sinica began in 1988, when he began working as an adjunct research fellow within the Institute of Atomic and Molecular Sciences.^[5] Yuan-Pern Lee has taught at National Chiao Tung University since 2004 as chair of the Department of Applied Chemistry and director of the Institute of Molecular Science.^[2][1] Lee was part of a research team at National Chiao Tung University that discovered the Criegee intermediate CH2OO particle in 2013.^[6][7] Lee was a 2017 recipient of the Humboldt Research Award.^[8][9] In 2019, Lee, Yuan-Tsong Chen, and Wei Fu-chan won Taiwan's Presidential Science Prize [zh].^[10]