Second Waterhouse House

The Second Waterhouse House is an historic house at 9 Follen Street in Cambridge, Massachusetts. The $2 1/2$-story wood-frame house was built on 1844, and is the most quintessentially Greek Revival house in the Follen Street Historic District. It was built by Benjamin Waterhouse, and is one of the earliest houses built on the street. Of particular historical interest is the assortment of heating systems that have been installed in the house since 1853, remnants of some of which are still found in the house's basement.

The house was listed on the National Register of Historic Places in 1983.