Yves Le Jan (born 15 April 1952 in Grenoble) is a French mathematician working in probability theory and stochastic processes.
Le Jan studied from 1971 to 1974 at the École normale supérieure, finishing with an Agrégation.
In 2006 he was invited speaker at the International Congress of Mathematicians in Madrid (New developments in stochastic dynamics).
[1] In 2008 he became Senior Member of the Institut Universitaire de France.
In 2011 he was Doob Lecturer at the 8th World Congress in Probability and Statistics in Istanbul.