The Warren Congregational Church is a historic Congregational Church at 4 Sackett Hill Road in Warren, Connecticut. It is a 2-1/2 story wood frame structure, with a projecting entry pavilion topped by a gabled pediment. The pavilion is divided into three bays by two-story pilasters, with each bay containing an entrance. The identical entrances are slightly recessed behind a frame of pilasters, and are topped by half-round transom windows. Above each of the outer entrances are sash windows with shutters. The pediment has a three-part window in the center, consisting of a round window resting on two smaller half-rounds. The church was built in 1818, and is an excellent and well-preserved example of Federal architecture.