Mary Clouston Dive (26 June 1913 – 10 September 1997) was a scientist and an Australian cricketer who played seven women's Test matches between 1948 and 1951. Dive graduated from Sydney University with a science degree and was employed by the Commonwealth Scientific and Industrial Research Organisation (CSIRO) for most of her life. She was usually known as Mollie Dive or, less often, Molly Dive. Dive was awarded the Medal of the Order of Australia in the 1987 Queen's Birthday Honours for "service to the sport of women's hockey and women's cricket".