The Chancery Amendment Act 1858 (21 & 22 Vict. c. 27) also known as Lord Cairns' Act after Sir Hugh Cairns, was an Act of the Parliament of the United Kingdom that allowed the English Court of Chancery, the Irish Chancery and the Chancery Court of the County Palatine of Lancaster to award damages, in addition to their previous function of awarding injunctions and specific performance. The Act also made several procedural changes to the Chancery courts, most notably allowing them to call a jury, and allowed the Lord Chancellor to amend the practice regulations of the courts. By allowing the Chancery courts to award damages it narrowed the gap between the common law and equity courts and accelerated the passing of the Judicature Act 1873, and for that reason has been described by Ernest Pollock as "prophetic".
After the English Court of Chancery was dissolved by the Supreme Court of Judicature Act 1873 the Act lost relevance, and in England and Wales it was gradually rep