G.D. Hale Carpenter MBE (26 October 1882 in Eton, Berkshire – 30 January 1953 in Oxford) was a British entomologist and medical doctor. He worked first at the London School of Hygiene and Tropical Medicine, and in Uganda, on tse-tse flies and sleeping sickness. His main work in zoology was on mimicry in butterflies, an interest he developed in Uganda and Tanganyika.He succeeded E.B. Poulton as Hope Professor of Zoology at Oxford University from 1933 to 1948.