Yakov Eliashberg (Russian: ???? ????????? ?????????; born 11 December 1946) is an American mathematician who was born in Leningrad, USSR.
He received his Ph.D.
from Leningrad University in 1972 under the direction of Vladimir Rokhlin.
From 1972 to 1979 he taught at the Syktyvkar State University of Komi Republic of Russia and from 1980 to 1987 worked in industry as the head of a computer software group.
In 1988 Eliashberg moved to the United States, and since 1989 he has been a professor of mathematics at Stanford University.