Jean Shinglewood Medawar, Lady Medawar was a British author and a former chairman of the Family Planning Association, and wife of the British Nobel laureate Sir Peter Brian Medawar.

Sir Peter Brian Medawar was a British biologist and writer, whose works on graft rejection and the discovery of acquired immune tolerance have been fundamental to the medical practice of tissue and organ transplants. For his scientific works, he is regarded as the "father of transplantation". He is remembered for his wit both in person and in popular writings. Richard Dawkins referred to him as "the wittiest of all scientific writers"; Stephen Jay Gould as "the cleverest man I have ever known".