Jean Rostand, French biologist and philosopher (d. 1977)
Jean Edmond Cyrus Rostand (30 October 1894, Paris – 4 September 1977, Ville-d'Avray) was a French biologist and philosopher.

Active as an experimental biologist, Rostand became famous for his work as a science writer, as well as a philosopher and an activist. His scientific work covered a variety of biological fields such as amphibian embryology, parthenogenesis and teratogeny, while his literary output extended into popular science, history of science and philosophy. His work in the area of cryogenics gave the idea of cryonics to Robert Ettinger.Rostand Island in Antarctica is named after him.