Mary Heaton

Mary Heaton may refer to:


 * Mary Frances Heaton (1801–1878), Englishwoman who was committed to an insane asylum in 1837 for insulting an Anglican vicar and was never released
 * Mary Margaret Heaton (1836–1883), English art historian
 * Mary Heaton (gymnast) (1911–1989), British gymnast who competed at the 1936 Summer Olympics