The Unitarian Church in Charleston, home to a Unitarian Universalist congregation, is an historic church located at 4 Archdale Street in Charleston, South Carolina. It is "the oldest Unitarian church in the South" and is a National Historic Landmark. It is the second oldest church in downtown Charleston. Its construction began in 1772 when the Society of Dissenters (now known as the Circular Congregational Church) needed more space than its Meeting Street location could provide. It was nearly complete in 1776 when the Revolutionary War began, finally being repaired and officially dedicated in 1787.