Mary Harrison

Mary Harrison may refer to:
 * Mary Harrison (artist) (1788–1875), English flower and fruit painter, and illustrator
 * Mary Harrison (golfer), Irish golf champion
 * Mary Dimmick Harrison (1858–1948), wife of the 23rd President of the United States, Benjamin Harrison
 * Mary Harrison McKee (1858–1930), first lady to her father President Benjamin Harrison, when her mother, Caroline Harrison, was seriously ill and then died
 * Pricey Harrison (Mary Price Harrison, born 1958), American attorney and member of the North Carolina House of Representatives