Farnum House may refer to the following American homes:
Farnum House, Norfolk, Connecticut, on the National Register of Historic Places (NRHP) Coronet John Farnum Jr. House, Uxbridge, Massachusetts, on the NRHP Moses Farnum House, Uxbridge, Massachusetts, on the NRHP William and Mary Farnum House, Uxbridge, Massachusetts, on the NRHP Farnum House, Carriage House Historic District, Miles City, Montana
See also Farnum Block, a commercial building in Uxbridge, Massachusetts, on the NRHP