Milo Keynes

Dr William Milo Keynes, MA, DM, MD, MCh, FRCS (born 1924) is a British doctor and author.

Keynes (pronounced "Canes") is the third son of Geoffrey Keynes, and his wife Margaret Darwin, daughter of Sir George Darwin. He is a great-grandson of the naturalist Charles Darwin, and a nephew of the economist John Maynard Keynes. His brothers are Richard, Quentin and Stephen.

He has published a collection of essays on his uncle and a biography of his uncle's wife, Lydia Lopokova. He has also written books on the history of science, on Isaac Newton and on Mendelism in human genetics.