John P. M. Bongaarts (born 1945) is a Dutch-American demographer. He serves as Vice-President and Distinguished Scholar at the Population Council, where he has worked since the 1970s. Bongaart has performed research in a diverse set of topics, such as population growth and aging, mortality, population-environment links and demography related to the epidemiology of HIV/AIDS. His most recognized work lies in the field of fertility, and has been a topic of interest throughout his career.