First Union Protestant Church of Mountain View is a historic church located at 7 Church Road in Bellmont, Franklin County, New York. It was built in 1915–1916, and is a one-story, rectangular, meetinghouse-style church. It measures 26 feet, 4 inches wide and 45 feet, 6 inches deep. It has a front gable roof and sits on a stone foundation. It features a square corner steeple/tower with an open belfry. It was added to the National Register of Historic Places in 2005.