Kenneth B. Pyle (born April 20, 1936 in Bellefonte, Pennsylvania) is a Japan historian and professor of History and International Studies at the University of Washington Seattle campus. Since earning his Ph. D. in Japanese History from Johns Hopkins University in 1965, he has become a major figure in the area of Japan studies, publishing several books on Japan and its international relations, and serving as the first editor of the Journal of Japanese Studies from 1974 to 1986. In 1998, the Japanese government awarded Pyle with the Order of the Rising Sun, and in 2008 he received the Japan Foundation Award for Japanese Studies.
Pyle is Founding President of The National Bureau of Asian Research (NBR), a nonpartisan, nonprofit think tank, and serves on the organization's Board of Directors. In 2006, NBR created The Kenneth B. and Anne H.H. Pyle Center For Northeast Asian Studies, a research center to focus on Northeast Asian political and security issues.