The First Congregational Church (also known as the Congregational Meetinghouse) is a historic Congregational Church on Church Street, west of Main Street, in Alton, New Hampshire, United States. Built in 1853-54, it is one of Belknap County's finest Greek Revival churches. The main entry projects slightly, allowing for the presence of paneled columns, which support the church tower. These columns are matched by pilasters at the building's corners. The church was built for a congregation established in 1827, that is now known as the Community Church of Alton.