Gabriel A. Wainer (Gabriel Wainer) is a Canadian/Argentinian computer scientist known for his work in modeling and simulation. He is a Professor in the Department of Systems and Computer Engineering at Carleton University in Ottawa, Canada. He is the head of the Advanced Real-Time Simulation lab, located at Carleton University's Centre for advanced Simulation and Visualization (V-Sim). He is known for his research in discrete-event simulation, in the Cell-DEVS specification., a variant of Discrete Event System Specification (DEVS).