Mary Herbert, Countess of Pembroke née Mary Talbot (c. 1580 – March 1649) was the wife of William Herbert, 3rd Earl of Pembroke. Mary was the daughter of Gilbert Talbot, 7th Earl of Shrewsbury, by his wife Mary, and was thus a granddaughter of Bess of Hardwick. She had two sisters, both of whom also married into the nobility: Alethea Howard, Countess of Arundel, and Elizabeth Grey, Countess of Kent. In June 1600 she was appointed as gentlewoman of the privy chamber of Queen Elizabeth and her sister Elizabeth was a maid of honour.