Union Congregational Church may refer to several churches in the United States:
Alphabetical by state, then town Union Congregational Church (Avon Park, Florida) Union Congregational Church (Tavares, Florida) Union Congregational Church (Amesbury, Massachusetts), listed on the National Register of Historic Places (NRHP) Union Congregational Church (Taunton, Massachusetts), NRHP-listed Union Congregational Church (Worcester, Massachusetts), NRHP-listed Union Congregational Church (Mackinac Island, Michigan), listed as a Michigan State Historic Site in Mackinac County Union Congregational Church and Parsonage, Buffalo, Wyoming, NRHP-listed
See also Union Park Congregational Church and Carpenter Chapel, Chicago, Illinois, NRHP-listed Union Valley Congregational Church, Taylor, New York, NRHP-listed