Steven A. Cohen (born 1953 in Orange, New Jersey) is an American academic who has taught public management and environmental policy at Columbia University since 1981.

He is also director of the Master of Public Administration Program in Environmental Science and Policy at Columbia University's School of International and Public Affairs, director of the Masters of Science in Sustainability Management at Columbia University's School of Professional Studies, and the director of the Earth Institute's Research Program on Sustainability Policy and Management at Columbia University.

Cohen served as a policy analyst in the EPA from 1977 to 1978 in the Office of Water and then in 1980–1981 in the Office of Hazardous Emergency Response and was responsible for developing and coordinating the implementation of public participation policy for the agency's hazardous waste clean-up Superfund Program.

Along with William Eimicke he has undertaken management consulting and training for a number of government and nonprofit organizations.

Cohen often comments on regional and national environmental policies, from Mayor Bloomberg’s PlaNYC to waste-to-energy options for urban areas, from the aftermath of 9/11 to global warming and nuclear energy.

Cohen has commented multiple times for both Fox News and NY1 television on the New York City mayoral race and the presidential campaigns.