Kotaro Suzumura is a Japanese economist and professor emeritus of Hitotsubashi University. He graduated from Hitotsubashi University in 1966. His research interests have included social choice theory and welfare economics. He was also a Fellow of the Econometric Society. Suzumura was awarded the Order of the Sacred Treasure, Gold and Silver Star in acknowledgement of his many years of achievement in education and research and contributions to academia in Japan.