West Ham or Westham may refer to:
- West Ham, London, England, a suburb
- County Borough of West Ham, a former administrative division
- West Ham (UK Parliament constituency), a parliamentary constituency created in 1997
- West Ham (Newham ward), an electoral ward of Newham London Borough Council, Greater London
- West Ham United F.C., a football club
- West Ham station
- Westham, East Sussex, England, a village and civil parish
- Westham, Dorset, suburb of Weymouth, Dorset, England
- Westham, Virginia, United States, a former unincorporated community
- Westham Bridge, bridge over the James River
- Westham station, Henrico County; a train station
- Westham Island, Delta, B.C., Canada, an island in Greater Vancouver
- Westham Island Bridge, a bridge to the island
- West Ham, fictional town in The Society (TV series), an American teen drama