Marc Lipsitch (born 1969) is an American epidemiologist and Professor in the Department of Epidemiology at the Harvard T.H.

He attended Oxford University as a Rhodes Scholar, studying zoology, and received his Doctor of Philosophy degree in 1995.

[2] While this research emphasizes the study of specific pathogen characteristics, such as mapping genomic diversity of Streptococcus pneumoniae among different human populations, other research aims include more macro-level concerns such as forecasting disease and assessing pandemic response and preparedness.

Chan School of Public Health, Lipsitch oversees research engaged in improving the mathematical modeling of infectious disease as well as how such information is effectively communicated to policy-makers and their constituents.

In 2009, Lipsitch served as a member of the President’s Council of Advisors on Science and Technology within the H1N1 flu pandemic working group.