Leon Petrosjan (Russian: Леон Аганесович Петросян) (born December 18, 1940) is a professor of Applied Mathematics and the Head of the Department of Mathematical Game theory and Statistical Decision Theory at the St. Petersburg University, Russia.

[2] The research interests of Leon Petrosjan lie mostly in the fields of operations research, game theory, differential games, and control theory.

In particular, he contributed to the study of the following topics: Leon Petrosjan is the Editor of the journal International Game Theory Review (W.S.

Pbl., Singapore, London);[3] the Editor of the international periodical Game Theory and Applications (Nova sci.

N.Y., USA);[4] the Chief Editor of the Vestnik Peterburgskogo Universiteta, seria 10: Applied Mathematics, Control, Informatics;[5] and the Chief Editor of the journal Mathematical Game Theory and Applications (Karelian Research Centre of RAS).