John de Moravia (also known as John Sutherland) (d. 1508) was the 8th Earl of Sutherland and chief of Clan Sutherland. During his chieftaincy his clan fought against the Clan Donald at the Battle of Skibo and Strathfleet.
John de Moravia, 8th Earl of Sutherland married firstly a daughter of John of Islay, Earl of Ross and Lord of the Isles and had the following children:
John de Moravia, 8th Earl of Sutherland married secondly a daughter of the chief of the Clan Ross of Balnagown Castle and had the following two sons: