Iviswold, also known as "The Castle", is a house originally constructed in 1869 located in what is now Rutherford, in Bergen County, New Jersey, United States.

[3] The house is part of the Rutherford campus of Felician College and underwent a renovation that was completed in 2013.

It was purchased in 1887 by David Brinkerhoff Ivison who greatly expanded it and gave the home the name "Iviswold".

The 1887 remodeling of the house was inspired by the Château de Chaumont in Loir-et-Cher, France.

In the 1970s, when Fairleigh Dickinson was using the building for classroom space, the college covered up much of the original interior with drop ceilings and partition walls.