Mary Austin

Mary Austin may refer to:

• Mary Hunter Austin (1868–1934), American writer of fiction and non-fiction
• Mary V. Austin (1900–1986), Australian community worker and political activist
• Mary Brown Austin (1768–1824), mother of Texan pioneer Stephen F. Austin
• Mary Austin (born 1951), closest friend and former girlfriend 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
• Mount Mary Austin, mountain in California's Sierra Nevada range