Michael Jeffrey Larsen is an American mathematician, a distinguished professor of mathematics at Indiana University Bloomington.

[1][2] In high school, Larsen tied with four other competitors for the top score in the 1977 International Mathematical Olympiad in Belgrade, winning a gold medal.

[8] Their son Daniel at age 13 became the youngest person to publish a crossword in the New York Times.

[1][2] He has written highly cited papers on domino tiling of Aztec diamonds,[10] topological quantum computing,[11][12] and on the representation theory of braid groups.

[14] He received the E. H. Moore Research Article Prize of the AMS in 2013 (jointly with Richard Pink).