Albert Fathi (born 27 October 1951 in Egypt) is an Egyptian-French mathematician.
He specializes in dynamical systems and is currently a professor at the Georgia Institute of Technology.
Fathi attended the Collège des frères Lasalle in Cairo and grew up bilingual in French and Arabic.
He has also taught at the École polytechnique.
He has been a visiting professor at the Institute for Advanced Study (1986/87), at the Universidad Complutense de Madrid (Instituto de Matemática Interdisciplinar), in Nanjing, in Cambridge and at MSRI.
In 2013 he received the Sophie Germain Prize.
He is a member of the Institut Universitaire de France.
At the International Congress of Mathematicians in 2014 in Seoul, Fathi was an Invited Speaker with talk Weak KAM Theory: the connection between Aubry-Mather theory and viscosity solutions of the Hamilton-Jacobi equation.