John "Jack" Llewelyn Davies (11 September 1894 – 17 September 1959) was the second eldest of the Llewelyn Davies boys, who were befriended by Peter Pan creator J. M. Barrie, and one of the inspirations for the boy characters in the story of Peter Pan. He served in the Royal Navy during World War I. Additionally, he was the first cousin of the English writer Daphne du Maurier.
