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
{{hndis, Ray, Mary