Christopher Dye FRS,[1] FMedSci (born 15 April 1956) is a biologist, epidemiologist and public health specialist.

Based at Imperial College and the London School of Hygiene and Tropical Medicine from 1982 to 1996, he studied bloodsucking insects as vectors of leishmaniasis, malaria and onchocerciasis in Africa, Asia and South America, and domestic and wild animals as reservoirs of human infection and disease.

Joining the World Health Organization in 1996, he developed ways of analyzing the vast quantities of routine surveillance data (big data) collected by government health departments worldwide─extracting signal from noise to devise better methods for understanding and controlling tuberculosis, malaria, and Ebola and Zika viruses.

He is currently Emeritus Professor of Epidemiology at the University of Oxford, where his research focuses on how choices and decisions are made for public and personal health.

He has been Epidemiology Advisor to the Chinese Center for Disease Control and Prevention (as 戴诗磊), Gresham Professor of Physic, a member (trustee) of Council of The Royal Society and the University of York, a Visiting Fellow of All Souls College, Oxford and the Oxford Martin School, and a long-time member of the Board of Reviewing Editors for the journal Science.