The Tate House is a historic house museum at 1270 Westbrook Street, near the Fore River in the Stroudwater neighborhood of Portland, Maine, United States. The house, one of the oldest in Portland, was built in 1755 for George Tate, a former Royal Navy captain who was sent by a contractor to the Navy to oversee the felling and shipment of trees for use as masts. Because of the house's comparatively remote location away from central Portland, it (along with a number of other homes that make up the Stroudwater Historic District) survived Portland's numerous fires intact. The house was designated a National Historic Landmark as a rare surviving example of a once-common colonial housing form, the clerestory gambrel roof.