| Yang Hung-duen | |
| Native Name: | 楊弘敦 |
| Office: | Minister of Science and Technology of the Republic of China |
| Deputy: | Tsai Mi-ching, Chiu Jeng-jiann |
| 1Blankname: | Vice |
| 1Namedata: | Chen Ter-shing |
| Term Start: | 20 May 2016 |
| Term End: | 7 February 2017 |
| Predecessor: | Shyu Jyuo-min |
| Successor: | Chen Liang-gee |
| Office1: | President of National Sun Yat-sen University |
| Term Start1: | October 2008 |
| Term End1: | 19 May 2016 |
| Predecessor1: | Chang Tsung-jen (張宗仁) |
| Successor1: | Wu Chi-hua (吳濟華) |
| Office2: | Deputy Minister of National Science Council of the Republic of China |
| Term Start2: | 2006 |
| Term End2: | 2008 |
| Minister2: | Maw-Kuen Wu Chen Chien-jen Lee Lou-chuang |
| Predecessor2: | Liao Chun-cheng (廖俊臣) |
| Birth Place: | Meinong, Kaohsiung County, Taiwan |
| Nationality: | Taiwanese |
| Alma Mater: | National Taiwan Normal University Iowa State University |
Yang Hung-duen (; born 3 September 1965) is a Taiwanese physicist. Yang was the president of National Sun Yat-sen University from 2008 to 2016, when he was selected to lead the Ministry of Science and Technology.
Yang earned a bachelor's of science degree in physics from National Taiwan Normal University, and a doctorate in the subject from Iowa State University. Upon graduation in 1987, he returned to Taiwan for a teaching position at National Sun Yat-sen University. He was a visiting professor at Wayne State University from 1999 to 2000.[1]
Yang led the Division of Natural Sciences and Mathematics at the National Science Council from 2001 to 2004, when he left for the Academia Sinica. He rejoined the NSC in 2006 as a deputy minister. In 2008, Yang was named President of National Sun Yat-sen University.[1] In April 2016, he was appointed Minister of Science and Technology.[2]