Edgar Atheling (that is, Edgar the Noble), an Anglo-Saxon prince, in the second half of the 11th century. He was the grandson of Edmund Ironside by his exiled son Edward, and was born in Hungary. In 1057 he followed his father to England, after whose sudden death in 1066 he became heir to the crown, being the nearest relative to Edward the Confessor. Yet he was young and feeble, and presented no claim, while Harold and William of Normandy fought for the kingdom at Hastings. After that battle (1066) he was received at court by William, confirmed in the earldom of Oxford, which had been granted him by Harold, and treated with the greatest kindness. He accompanied the king in his visit to Normandy, but after his return, persuaded by the discontented Northumbrian lords, he took refuge with his followers in Scotland, and sought to lead a rebellion in Northumberland. Failing in this and in other enterprises, he returned to England in 1073, having previously rendered his submission to the king and received pardon. He was afterward engaged in a Scottish war to place a relative upon the throne of that country.

The best result of his career was the introduction of the superior cultivation of the south into Scotland.