•
Mary Stewart (daughter of Robert III) (c. 1380 – c. 1460), Scottish princess •
Mary Stewart, Countess of Buchan (before 1428–1465), fifth daughter of James I of Scotland, 1st Countess of Buchan •
Mary of Guelders (c. 1434–1463), queen to James II of Scotland •
Mary Stewart, Countess of Arran (1453–1488), daughter of James II of Scotland •
Mary of Guise (1515–1560), wife of James V of Scotland, mother of Mary, Queen of Scots •
Mary, Queen of Scots (1542–1587), queen regnant of Scotland, wife of Francis II of France and mother of James I of England •
Mary Stuart (1605–1607), daughter of James I of England •
Mary Stuart O'Donnell (1607–in or after 1639), Irish noblewoman •
Mary Stewart, Duchess of Richmond (1622–1685), British aristocrat •
Marie Stewart, Countess of Mar (died 1644), Scottish courtier •
Mary, Princess Royal and Princess of Orange (1631–1660), Princess Royal and Princess of Orange-Nassau, daughter of Charles I of England and mother of William III of England •
Mary Stewart, Viscountess Mountjoy (1654–1720) •
Mary of Modena (1658–1718), wife of James II of Great Britain (VII of Scotland) •
Mary II of England (1662–1694), co-ruler of England and Scotland with her husband William III from 1689 until her death •
Mary Stuart, Countess of Bute (1718–1794), British peeress, wife of the British Prime Minister •
Mary Ann Sorden Stuart (1828–1893), American suffragist •
Mary Routh McEnery Stuart (1849–1917), American author •
Mary Stewart (social worker) (1862/3–1925), English social worker •
Mary Downie Stewart (1876–1957), New Zealand political hostess and welfare worker •
Mary Stewart, Baroness Stewart of Alvechurch (1903–1984), English Labour politician and educator •
Mary Stewart (novelist) (1916–2014), British novelist •
Mary Stuart (actress) (1926–2002), American actress, best known for her 35-year role in the soap opera
Search for Tomorrow •
Mary Stewart (swimmer) (born 1945), Canadian swimmer •
Mary Stewart (runner) (born 1956), British middle-distance runner •
Mary Stuart (academic) (born c. 1957), vice chancellor of the University of Lincoln ==Works==