Æthelfrith

Æthelfrith or Aethelfrith is an Anglo-Saxon male name borne by several men:

• Æthelfrith of Northumbria (d. c. 616), King of Bernicia
• Æthelfrith of Elmham (d. c. 745), Bishop of Elmham
• Æthelfrith of Wessex (c. 870–927), Ealdorman in Mercia and probable grandson of Æthelred I