Harry Grey, 4th Earl of Stamford (18 June 1715 – 30 May 1768) was an English peer, styled Lord Grey from 1720 to 1739. Harry Grey was born at Enville Hall, the eldest son of Henry Grey, 3rd Earl of Stamford. He was educated at Rugby and Westminster. In 1736, he married Lady Mary Booth, the only daughter and heiress of George, 2nd Earl of Warrington. They had three children: * George Harry Grey, 5th Earl of Stamford (1737–1819) * Hon. Booth Grey (1740–1802), the MP for Leicester from 1774 to 1784, married, with a son and daughter * Hon. John Grey (1743 – 12 July 1802), married and had issue