Michel Raynal (born 1949), is a French computer scientist, active in the field of distributed computing.
His main contributions concern the design of distributed algorithms, fault-tolerance of distributed computing systems (mainly focusing on the consensus problem), and distributed computability.
He has been a professor at the University of Rennes (France) since 1984.
He has co-authored numerous research papers on distributed computing, and has written 12 books.
Since 2013, Michel Raynal has been "Adjunct Professor" at the Polytechnic University of Hong Kong.When he became Emeritus Professor, INRIA, IRISA, University of Rennes, organized a Workshop, featuring various speakers, including Turing Award recipient (Leslie Lamport) and Dijkstra Prize recipients (Leslie Lamport, Maurice Herlihy, Yoram Moses).