Mary Grey may refer to:

In spite of the intrigues involving her sisters, it does not appear that Mary Grey ever made a serious claim to the throne.

Mary Grey - the elder sister of Agnes.

Arthur went on to marry his secret mistress, Mary Grey.

He was first married to Mary Grey (1491- 22 February 1538) on 15 December 1503.

By Mary Grey he had three children:

Mary Grey was being firm with a stout woman who was enamored of a skin-tight powder-blue evening dress.

Martha bore Harry three children, John, Frances and Mary Grey.

Mary Grey read too fast and dropped her voice at the end of every sentence, but the message and its implications were far reaching.

Mary Grey offered to report on dissociation and multiple personalities.