Ethelbert or Æthelberht is a masculine given name.
Ethelbert may also refer to:
Places Ethelbert, Manitoba, Canada Municipality of Ethelbert Rural Municipality of Ethelbert, 1905–2015 Ethelbert (electoral district), 1920–1958 Mount Ethelbert, a mountain in British Columbia, Canada
Other uses Ethelbert (orca), a whale that swam up the Columbia River in 1931
See also Ethelbert Ridge, Alexander Island, Antarctica