David S. C. Chu

David S. C. Chu (朱思九; pinyin: Zhū Sījiǔ; born May 28, 1944) is a retired American civil servant and consultant.

He was born in New York, New York on May 28, 1944. He served as the president and CEO of the non-profit Institute for Defense Analyses from 2009 to 2019. From 2001 to 2008, he served as Under Secretary of Defense for Personnel and Readiness in the George W. Bush administration.

Chu received a Bachelor of Arts Degree, magna cum laude, in Economics and Mathematics from Yale University in 1964 and a PhD in Economics, also from Yale, in 1972 following a break due to military service. In 1968 he was commissioned in the United States Army and became an instructor at the U.S. Army Logistics Management Center, Fort Lee, Virginia. He later served a tour of duty in the Vietnam War, working in the Office of the Comptroller, Headquarters, 1st Logistical Command. He obtained the rank of captain and completed his service with the Army in 1970.