John F. May, a US and Belgian national, is a specialist of population policies.

He is currently working for  Schar School of Policy and Government, George Mason University. From 2013 to 2017 he was Visiting Scholar at the Population Reference Bureau (PRB) in Washington, DC. He was a Lead Demographer at the World Bank for 15 years and has worked before for the United Nations (Haiti and New Caledonia), as well as for the Futures Group International, a US consulting firm specializing in demographic modeling and policy. He has worked for most international agencies around the world, including the International Union for the Scientific Study of Population (IUSSP), UNICEF, UNFPA, and USAID.

He has a BA in Modern History (1973), a MA in demography (1985), which were both earned at the Catholic University of Louvain, Belgium. He received his PhD summa cum laude from the University of Paris-V (Sorbonne) in 1996. He has published "World Population Policies: Their Origin, Evolution, and Impact" (Springer, 2012), which has received the Population Institute 2012 Global Media Award for best book in population.

Recently published: Groth, Hans, May, John F. (Eds.): Africa's Population: In Search of a Demographic Dividend, Springer 2017.