Ceolwulf, occasionally spelt Ceolwulph, may refer to:
Ceolwulf I of Mercia, King of Mercia (821–823) Ceolwulf II of Mercia (died c. 879), King of Mercia Ceolwulf of Northumbria (died 765), King of Northumbria, monk and saint Ceolwulf of Wessex (died. c. 611), King of Wessex Ceolwulf of Lindsey (died 796), Bishop of Lindsey