Francis Henry Fassett (June 25, 1823 – November 1, 1908) was an American architect in Maine who built as many as 400 homes and buildings throughout the state.
Working in the Victorian High Gothic and Queen Anne styles, he especially influenced the look of Portland.
His designs for the city include the original Maine General Hospital Building, Alms House, Second Parish Church, the parish house for the Cathedral of St. Luke, and the former city hall, which burned in 1908 and was replaced by the present building.
In 1895, Fassett redesigned the Mount Pleasant House, a hotel at Bretton Woods, New Hampshire in the White Mountains.
Hired by Joseph Stickney, a coal mine and railroad stock tycoon who later built nearby Mount Washington Hotel, the architect enlarged the plain building into a Queen Anne style confection of cupolas, gables and porches.