Mary Martin (disambiguation)
Mary Martin (1913-1990) was an American actress and singer.

Mary Martin may also refer to:
Mary Letitia Martin (1815–1850), Irish writer
Mary Ann Martin (1817–1884), New Zealand community leader, teacher and writer
Mary Ward (suffragist) (née Martin; 1851–1933), Irish suffragist
Mary Martin (missionary) (1892–1975), Irish missionary
Mary Martin (artist) (1907–1969), British sculptor
Mary Maydwell Martin (1915–1973), Australian bookseller
Mary Brandon Martin, founder of Lower Brandon Plantation