Raymond Latarjet, born in Lyon on October 17, 1911 and died in Neuilly-sur-Seine on June 3, 1998, was a French biologist and radiobiologist. He is the son of André Latarjet, professor of medicine in Lyon.

Raymond Latarjet, first a physicist, then a doctor, was for twenty years the undisputed and prestigious leader of French radiobiology and gave it great international renown. He devoted his doctoral theses in science and medicine to ultraviolet rays and their attenuation by atmospheric ozone. By calculation, he establishes the relationship between the thickness of the ozone layer and the genotoxic activity (mutagenic and carcinogenic) of solar ultraviolet rays.