William Grosvenor, 3rd Duke of Westminster (23 December 1894 – 22 February 1963) was a British landowner and aristocrat.
His mother, Dora Mina Erskine-Wemyss, was the daughter of James Erskine Wemyss, and a great-granddaughter of William IV.
After the death of his mother, he lived with his stepmother, the former Rosamund Angharad Lloyd, in a small house in the south of England.
After his stepmother's death, the Duke lived in another house in Bath with a carer.
He is buried in the churchyard of Eccleston Church near Eaton Hall, Cheshire.