The Joshua Hempsted House is a historic house museum at 11 Hempstead Street in New London, Connecticut. Built about 1678 and altered several times during the 18th century, it is one of the state's oldest surviving buildings, and provides a virtual catalog of early construction methods due to its state of preservation. The house was acquired by Connecticut Landmarks in 1937, which operates it and the adjacent 1759 Nathaniel Hempstead House as a historic house museum complex known as the Hempsted Houses. The houses have been restored to reflect a late 17th to mid 18th-century appearance, and was listed on the National Register of Historic Places in 1970.