Ethelbert \e-thelbe-rt, eth(el)-bert\ as a boy's name is of Old English origin, and the meaning of Ethelbert is "noble, bright, famous". The original form of Albert. A sixth-century king of Kent whom Saint Augustine converted to Christianity.

For more information, see also the related name Elbert.

Baby names that sound like Ethelbert are Adelbert and Adalbert. Other similar baby names are Ethelred and Engelbert.