Hiraku Nakajima

| birth_place = Tokyo | death_date = | death_place = | nationality = Japanese | fields = Mathematics | workplaces = Kyoto University
Research Institute for Mathematical Sciences | alma_mater = University of Tokyo | doctoral_advisor = | doctoral_students = | known_for = | awards = Geometry Prize (1997)
Cole Prize (2003) }} Hiraku Nakajima (Japanese: 中島 啓 ''Nakajima Hiraku''; born November 30, 1962) is a Japanese mathematician, and a professor of the Kavli Institute for the Physics and Mathematics of the Universe at the University of Tokyo. He is International Mathematical Union president for the 2023–2026 term.

He obtained his Ph.D. from the University of Tokyo in 1991. In 2002 he was plenary speaker at the International Congress of Mathematicians in Beijing. He won the 2003 Cole Prize in algebra for his work on representation theory and geometry. He proved Nekrasov's conjecture. Provided by Wikipedia