Sir John Stanley, King and Lord of Man and the Isles (c.1386 - 1437), the second of that name, was Knight Sheriff of Anglesey, Constable of Carnarvon, Justice of Chester, Steward of Macclesfield and titular King of the Isle of Man.
He was installed as Knight of the Garter in 1404.
His father Sir John de Stanley, Lord Lieutenant of Ireland, had been granted the tenure of the Isle of Man under the title of King by Henry IV, and the younger Sir John succeeded to the Kingdom in 1414.
