Xavier Chang

Chang Tun-han (; born July 17, 1981) is a Taiwanese politician who has served as Secretary-General of the Executive Yuan since 2025.

Early life and education Chang was born in Keelung, Taiwan, in 1981. He graduated from National Taiwan University with a Bachelor of Arts in political science in 2005 and a Master of Arts in political science in 2012. As an undergraduate, he was a class representative, worked as the deputy director of the university's student union, and served as the head of a student public relations station.

Political career In 2004, Chang was recruited by President Chen Shui-bian to join his re-election campaign and became the executive director of Chen's youth headquarters for northern Taiwan. He took office on September 1, 2025. He is the youngest secretary-general in the history of the office.

Personal life Chang is married to Chen Hsi-chun, a television anchor.