The Catholic Clerical Union is an American Anglo-Catholic organization founded in 1886 as the Clerical Union for the Maintenance and Defence of Catholic Principles.
In 2006, its website listed chapters for Albany, Chicago, Dallas-Fort Worth, New England, New York-New Jersey-Connecticut, and Northern Indiana.
An organization with the name Catholic Clerical Union was incorporated in California as a domestic non-profit on October 12, 2017 (number C4073892).