Yan Hong-sen (Chinese: 顏鴻森; pinyin: Yán Hóngsēn; born 12 February 1951) is a Taiwanese academic and politician.
[3] Yan obtained his bachelor's degree in mechanical engineering from National Cheng Kung University (NCKU) in 1973.
[4] In order to understand the contents of ancient literature and the development of ancient machinery, he enrolled in the Chinese Department of Tunghai University at the age of seventy.
[5] Upon the end of his studies in the United States, Yan returned to the Department of Mechanical Engineering of NCKU as associate professor from 1980 to 1984, department head from 1986 to 1987 and Vice President from 2011 to 2015.
Yan was appointed as a Minister without Portfolio on 5 February 2015.