Ham House

• London, England United Kingdom

Not to be confused with Ham House in east London or Mathias Ham House in Iowa.

Ham House is a historic house with formal gardens set back 200 metres from the River Thames in Ham, south of Richmond in London. It is claimed by the National Trust to be "unique in Europe as the most complete survival of 17th century fashion and power." The house itself is designated on the National Heritage List for England as a Grade I listed building. Its park and formal gardens are listed at Grade II* by Historic England in the Register of Historic Parks and Gardens.