•
Mary Brown Austin (1768–1824), mother of Texan pioneer Stephen F. Austin •
Mary Hunter Austin (1868–1934), American writer of fiction and non-fiction •
Mary Therese Austin (d. 1889), American theater critic; tennis club founder •
Mary V. Austin (1900–1986), Australian community worker and political activist • Mary Austin (born 1951), closest friend and common-law wife of British singer-songwriter
Freddie Mercury • Mary Austin, wife of
Brewster Kahle and co-founder of the Kahle/Austin Foundation • Mary Austin, pseudonym of American science fiction writer
Jane Rice •
Mary-Austin Klein (born 1964), American landscape painter ==Other==