Northumberland is a ceremonial county and unitary authority area in North East England.
Northumberland may also refer to:
Place names
Australia
- Northumberland County, New South Wales
Canada
- Northumberland County, Ontario
- Northumberland County, New Brunswick
- Northumberland (Ontario federal electoral district), a former federal electoral district
- Northumberland (Ontario provincial electoral district), a former provincial electoral district in Ontario
- Northumberland (New Brunswick federal electoral district), a former federal electoral district
- Northumberland (New Brunswick provincial electoral district), a former provincial electoral district in New Brunswick
United States
- Northumberland, New Hampshire
- Northumberland, New York
- Northumberland, Pennsylvania
Islands
- Northumberland Island (Kiatak), in northwest Greenland
People
- Duke of Northumberland
- Earl of Northumberland
Armed forces
- Northumberland Hussars
- Royal Northumberland Fusiliers
Ships
- HMS Northumberland, several ships of the Royal Navy
- French ship Northumberland, several ships of the French Navy
- Northumberland (ship), several ships
Sports
- Northumberland County Cricket Club
Other uses
- Northumberland Apartments, Washington, D.C.
See also
- Northumberland County (disambiguation)
- Northumberland Park (disambiguation)
- Northumbria (disambiguation)