Mary Beatrice Duggan (7 November 1925 – 10 March 1973) was an international cricketer, who played 17 test matches for the England women's cricket team between her debut against Australia in Adelaide in 1949, and her last game, against the touring Australians, at the Oval in 1963. Born on 7 November 1925, she died on 10 March 1973 in Ledbury, Herefordshire. In addition to her long test career, she played for Middlesex Women, South Women, and Yorkshire Women, as well as Worcestershire women, whom she captained for several years.