Iain Malcolm Lonie (1932 – 18 June 1988) was a British-born New Zealand poet and a historian of ancient Greek medicine. His academic career was spent between New Zealand, Australia and England. He read classics at the University of Cambridge, lectured at universities in both Australia and New Zealand, worked as a research fellow for the Wellcome Trust, and wrote a definitive textbook on the Hippocratic texts On Generation, On the Nature of the Child and Diseases IV.