Mary Bruce (disambiguation)

Mary Bruce (c. 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)