The David Cummins Octagon House is a historic octagon-shaped house located at 301 Liberty Street in Conneaut, Ohio.

The house had a tunnel that ran from it to the nearby Conneaut Creek, leading to speculation that it served as a station on the Underground Railroad.

[2] However, this claim has been questioned and has been suggested that the tunnel might have belonged to a previous structure on the property.

[3] The house was added to the National Register of Historic Places[1] on September 9,1974.

This article about a property in Ashtabula County, Ohio on the National Register of Historic Places is a stub.