Greystoke

Greystoke may refer to:
 * Greystoke, Cumbria, a village and civil parish in Cumbria, England
 * Greystoke Castle in this village
 * Greystoke Park, an area of Newcastle upon Tyne, England
 * Greystoke Park, a modern housing development in Penrith, England
 * Baron Greystoke or Greystock, an English noble title, now extinct
 * Tarzan, a fictional character whose English name was said to be John Clayton, Lord Greystoke
 * Greystoke: The Legend of Tarzan, Lord of the Apes, a 1984 film
 * Tarzan Alive: A Definitive Biography of Lord Greystoke (1972), a "fictional biography" by Philip José Farmer, based on Tarzan