The Benjamin Thompson House, also known as the Count Rumford Birthplace, is a historic house museum and National Historic Landmark at 90 Elm Street, in the North Woburn area of Woburn, Massachusetts. It is significant as the birthplace of scientist and inventor Benjamin Thompson (1753–1814), who became Count Rumford of the Holy Roman Empire as well as Sir Benjamin Thompson of the United Kingdom. His birthplace was designated a National Historic Landmark in 1975 in recognition of Rumford's scientific accomplishments, which notably include the development of the Rumford stove, a fireplace design that was significantly more efficient at retaining heat in the house than older and larger fireplaces.