Ronald Elbert Mickens (born February 7, 1943) is an American physicist and mathematician who is the Fuller E. Callaway Professor of Physics at Clark Atlanta University. His research focuses on nonlinear dynamics and mathematical modeling, including modeling epidemiology. He also has an interest in the history of science and has written on the history of black scientists. He is a fellow of the American Physical Society and served as the historian of the National Society of Black Physicists. He has made significant contributions to the theory of nonlinear oscillations and numerical analysis.