William Wellington House
 The William Wellington House is a historic house at 785 Trapelo Road in Waltham Massachusetts. It was built in 1779 and added to the National Register of Historic Places in 1989. The house stayed in two families until somewhere around 1930 when it was acquired by Middlesex County Hospital. Prior to renovations it had been abandoned for over 20 years.The home was purchased as part of a development of condominiums nearby now known as Wellington Crossing.