Demarest House may refer to:
in the United States (by state then city) Demarest–Atwood House, Cresskill, New Jersey, listed on the National Register of Historic Places (NRHP) in Bergen County John R. Demarest House, Demarest, New Jersey, listed on the NRHP in Bergen County Samuel R. Demarest House, Demarest, New Jersey, listed on the NRHP in Bergen County Daniel Demarest House, Dumont, New Jersey, listed on the NRHP in Bergen County Thomas Demarest House, Englewood, New Jersey, listed on the NRHP in Bergen County Ackerman–Demarest House, Ho-Ho-Kus, New Jersey, listed on the NRHP in Bergen County Blauvelt–Demarest House, Hillsdale, New Jersey, listed on the NRHP in Bergen County Davenport–Demarest House, Montville, New Jersey, listed on the NRHP in Morris County Demarest House (New Brunswick, New Jersey), listed on the NRHP in Middlesex County Jacobus Demarest House (New Milford, New Jersey), listed on the NRHP in Bergen County Demarest House (Oakland, New Jersey), listed on the NRHP in Bergen County Jacobus Demarest House (Oakland, New Jersey), listed on the NRHP in Bergen County Demarest–Bloomer–Hart House, New Milford, New Jersey, listed on the NRHP in Bergen County Demarest–Hopper House, Oakland, New Jersey, listed on the NRHP in Bergen County Demarest House (Oradell, New Jersey), listed on the NRHP in Bergen County Debaun–Demarest House, River Edge, New Jersey, listed on the NRHP in Bergen County Demarest House (River Edge, New Jersey), listed on the NRHP in Bergen County Haring–Blauvelt–Demarest House, River Vale, New Jersey, listed on the NRHP in Bergen County Cornelius Demarest House, Rochelle Park, New Jersey, listed on the NRHP in Bergen County Brinkerhoff–Demarest House, Teaneck, New Jersey, listed on the NRHP in Bergen County Demarest–Lyle House, Tenafly, New Jersey, listed on the NRHP in Bergen County