Alexander Polycleitos Cawadias FRCP OBE (3 or 20 May 1884 – 20 November 1971) was a Greek physician who worked mainly in England. He was an advocate of neo-Hippocratism, holistic medicine, and homeopathy. He argued in his book Hermaphroditos the Human Intersex (1943) that human gender was a continuum and intersexuality a normal phenomenon. He denied there was such a thing as a true hermaphrodite and saw all humans as somewhere between male and female.