The Paramus Reformed Church Historic District is a 39-acre (16 ha) historic district encompassing the historic Old Paramus Reformed Church located at 660 East Glen Avenue in the village of Ridgewood in Bergen County, New Jersey, United States. The district was added to the National Register of Historic Places on February 25, 1975, for its significance in architecture, education, military history, and religion. It includes three contributing buildings: the church, parsonage, and education buildings; and two contributing sites: the Old Paramus Reformed Church Cemetery and the Valleau Cemetery.