Yohei Kojima (born 1982) is a Japanese economic historian and Associate Professor at the Graduate School of Economics, the University of Tokyo. Specializing in Japanese economic history, agricultural history, and financial history, his research explores the development of local communities, finance, and industry in modern Japan through extensive archival research. His book "The History of Consumer Finance in Japan" received the Shinsho Grand Prize, the Suntory Prize for Social Sciences and Humanities, and the Nikkei Prize for Excellent Books in Economic Science. His best-known book, "The History of Consumer Finance in Japan," traces the rise of consumer lending from its origins to its transformation into a major social issue, showing how it reshaped both Japan's economy and everyday life.