Magnus J. Carnahan House

Magnus J. Carnahan House is a historic home located at Washington, Daviess County, Indiana. It was built between 1896 and 1902, and is a $2 1/2$-story, Queen Anne style brick dwelling on a raised basement. It features a round corner tower with a conical roof, one-story porch and balcony, and complex hipped and gable roof. Also on the property is a contributing carriage house.

It was added to the National Register of Historic Places in 1991.