Andrei Jurjewitsch Okunkow (Russian: Андрей Юрьевич Окуньков, scientific transliteration Andrej Jur'evič Okun'kov, English transcription Andrei Okounkov, born June 26, 1969 in Moscow ) is a Russian mathematician who works in the field of representation theory. In particular, he is concerned with the application of this theory in algebraic geometry, mathematical physics, probability theory and the theory of special functions.
His PhD thesis was finished in 1995 at the Moscow State University, supervised by Alexander Kirillov. Following a stint as an assistant professor at the University of California, Berkeley, he was from 2002 to 2010 Professor at Princeton University and since 2010 professor at Columbia University.
In 2004 he gave a plenary lecture the 4th European Congress of Mathematicians (Random surfaces Enumerating algebraic curves ). At the 25th International Congress of Mathematicians in Madrid ( 2006) he was awarded the Fields Medal. He was there also Invited Speaker (Random partitions and instanton counting ).