Mary Hansen (1966–2002) was an Australian-born guitarist and singer.
Mary Hansen or Hanson may also refer to: Mary Hansen (anarchist) (1874–1952), Danish American schoolteacher and anarchist activist Mary Hansen (politician) (1935–1996), American rancher, businesswoman, and politician Mary Hanson (born 1944), American TV presenter Mary Joan Hansen, American former wife of TV presenter Chris Hansen Harold and Mary Jean Hanson Rare Book Collection