Eardwulf or Eardulf is an Anglo-Saxon male name. Notable people with the name include:
Eardwulf of Northumbria, (floruit late 8th/early 9th century), ruler of Northumbria
Eardwulf of Kent (floruit middle 8th century), ruler of Kent
Eardwulf, Bishop of Dunwich (floruit middle 8th century), Bishop of Dunwich
Eardwulf of Rochester (floruit middle 8th century), Bishop of Rochester
Eardwulf of Lindisfarne (floruit late 9th century), Bishop of Lindisfarne