Northam is the name of a number of places around the world:
- Northam, Devon - a town in Devon, England.
- Northam (North Devon) railway station
- Northam, Southampton - A district of the city of Southampton, England
- Northam, Western Australia - a town and shire in Western Australia
- Northam, South Africa - a small town in North West Province, South Africa
Northam is a surname and may refer to :
- Bill Northam (1905-1988), Australian Olympic yachtsman
- Jackie Northam, American broadcast reporter
- Jeremy Northam (b. 1961), British actor
- John Northam (d. 2004), professor emeritus of literature and drama at Cambridge University and father of Jeremy Northam
- Ralph Northam (b. 1959), American politician and physician
- Mark Northam (b. 1954), Director of the University of Wyoming School of Energy Resources