Mary Ray

Mary Ray may refer to:
 * Mary Ellen Ray (1931–2004), American-born actress in the UK
 * Mary Josephine Ray (1895–2010), Canadian supercentenarian
 * Mary Lyn Ray (born 1946), American author, conservationist, and historic preservationist
 * Mary Ray (dog trainer), British dog trainer
 * Mary Ruth Ray (1956–2013), American classical musician