The Constitutions of Clarendon were a set of legislative procedures passed by Henry II of England in 1164. The Constitutions were composed of 16 articles and represent an attempt to restrict ecclesiastical privileges and curb the power of the Church courts and the extent of papal authority in England. In the anarchic conditions of Henry II's predecessor, Stephen (reigned 1135–1154), the church had extended its jurisdiction by taking advantage of the weakness of royal authority. The Constitutions were claimed to restore the law as it was observed during the reign of Henry I (1100–1135).
The Constitutions take their name from Clarendon Palace, Wiltshire, the royal hunting lodge at which they were promulgated.