Ēadwine also Edwin (died 1071) was the elder brother of Morcar, Earl of Northumbria, son of Ælfgār, Earl of Mercia and grandson of Leofric of Mercia. He succeeded to his father's title and responsibilities on Ælfgār's death in 1062. He appears as Earl Edwin (Eduin comes) in the Domesday Book. In 1068, Edwin and Morcar attempted to raise a rebellion in Mercia but swiftly submitted when William moved against them. In 1071 they again sought to rebel but Edwin was soon betrayed to the Normans by his own retinue and killed.