The William Watts Sherman House is a notable house designed by American architect H. H. Richardson, with later interiors by Stanford White. It is a National Historic Landmark, generally acknowledged as one of Richardson's masterpieces and the prototype for what became known as the Shingle Style in American architecture. It is located at 2 Shepard Avenue, Newport, Rhode Island and is now owned by Salve Regina University. It is a contributing property to the Bellevue Avenue Historic District.