Anthony Grey, 3rd Baron Lucas, styled Earl of Harold (21 February 1695 – 21 July 1723) was a British peer and courtier. Grey was the eldest son of Henry Grey, 1st Duke of Kent, and his wife, Jemima Crew. On 17 February 1718, Anthony married Lady Mary Tufton, a daughter and coheiress of Thomas Tufton, 6th Earl of Thanet, by his wife Lady Catharine Cavendish. He was called to the House of Lords, by writ of acceleration in his father's barony of Lucas, on 8 November 1718.