Jeffrey Paul Mass (June 29, 1940 – March 30, 2001) was an American academic, historian, author and Japanologist. He was Yamato Ichihashi Professor of Japanese History at Stanford University.
Mass was born in New York City in 1940. He earned a BA degree in history from Hamilton College in 1961. He received his PhD. in history from Yale University in 1971.
Mass joined the Stanford University faculty in 1973. He became a full professor in 1981.
In an overview of writings by and about Mass, OCLC/WorldCat lists roughly 30+ works in 110+ publications in 3 languages and 5,000+ library holdings.