Kiyoshi Igusa (born November 28, 1949) is a Japanese-American mathematician and a professor at Brandeis University.
He works in representation theory and topology.
He studied at the University of Chicago and Princeton University, where he obtained his Ph.D. in 1979, under the direction of Allen Hatcher.
[3] In 1990, he gave an invited lecture at the ICM in Kyoto (Topology Section).
Igusa is married to Gordana Todorov,[5] with whom he is a frequent collaborator.