Chang Chun-yen (12 October 1937 – 12 October 2018) was a Taiwanese electrical engineer and professor who served as President of National Chiao Tung University (NCTU).
He was a member of Academia Sinica and a foreign associate of the United States National Academy of Engineering.
Considered a founder of Taiwan's semiconductor industry, he was awarded the TWAS Prize for Engineering Sciences in 2006 and the Nikkei Asia Prize for Science in 2007.