A blockhouse is a small, isolated fort in the form of a single building.
Blockhouse or block house may also refer to:
Buildings Blockhouse (Central Park), fort in New York City Blockhouse on Signal Mountain (Oklahoma), historic building at Fort Sill, Oklahoma Block House (Delaware), historic building in Claymont, Delaware Block House (Governors Island), historic building on Governors Island, New York Block House (Melcombe), old fort in Weymouth, Dorset Fort Pitt Block House, historic building in Point State Park, Pittsburgh Blockhaus d'Éperlecques, a Nazi bunker in France, built as a V-2 launch base Blockhouse for one or multiple launch pads (example Cape Canaveral Space Force Station#LC-23/24)
Other Blockhouse, Nova Scotia Blockhouse, Washington Block House (restaurant), chain based in Hamburg The Blockhouse, 1973 film