New zealand physician, microbiologist and university lecturer.
Mary (Molly) Joyce Marples (née Ransford; 1908 - 1998) was a microbial ecologist/medical mycologist who spent most of her career conducting research and teaching at the University of Otago in New Zealand from her appointment in 1946 until her retirement in 1967. She is noted as an early proponent of the theory that skin provides an ecosystem that supports a diversity of microorganisms.