Hester Grenville may refer to: Hester Grenville, 1st Countess Temple (1690–1752), English noblewoman Hester Pitt, Countess of Chatham (née Grenville, 1720–1803), wife of William Pitt the Elder Hester Grenville, mother of Hester Pitt and wife of Richard Grenville Hester Grenville (c. 1767–1847), niece of Hester Pitt and daughter of George Grenville