Prospect House, known also as just Prospect, is a historic house on the Princeton University campus in Princeton, Mercer County, New Jersey, United States. Built in 1851, it is a fine example of the work of architect John Notman who helped popularize Italianate architecture in America. Notable residents include Woodrow Wilson during his tenure as president of the university. The building now serves as a faculty club. It was designated a National Historic Landmark in 1985 for its architecture and historic associations.

John Notman was a Scottish-born American architect and landscape architect based in Philadelphia. He designed buildings, cemeteries, churches and country estates in the Mid-Atlantic region of the United States and helped popularize Italianate architecture in the United States.