Mary Bruce (disambiguation) explained

Mary Bruce (1282 - 1323) was the sister of Robert the Bruce, King of Scots.

Mary Bruce may also refer to:

• Mary Bruce, Countess of Elgin (1778–1855), first wife of British diplomat Thomas Bruce, 7th Earl of Elgin
• Mary Grant Bruce (1878–1958), Australian children's author and journalist
• Mary Louisa Bruce, Countess of Elgin (1819–1898)