Mary Grey
Mary Grey may refer to:
- Mary Caroline Grey, birth name of Mary Elliot-Murray-Kynynmound, Countess of Minto, British aristocrat
- Mary Grey (theologian), English Roman Catholic ecofeminist liberation theologian
- Lady Mary Grey, sister of Jane Grey, Queen of England
- Mary Grey, Countess Grey, wife of Charles Grey, 2nd Earl Grey
- Mary Grey, Countess of Kent, English peeress
- Mary Grey, Baroness Grey de Wilton
- Lady Mary Gregory, Lady Mary Grey, daughter of Henry Grey, 1st Duke of Kent
Fictional characters
- Mary Grey, in the 1939 US comedy film 5th Ave Girl, played by Ginger Rogers