The Court of Common Pleas of the County Palatine of Lancaster, sometimes called the Common Pleas of or at Lancaster was a court of common pleas that exercised jurisdiction within the County Palatine of Lancaster until its jurisdiction was transferred to the High Court by the Supreme Court of Judicature Act 1873. It was a Superior Court of Record, exercising, within the limits of the County Palatine, a jurisdiction similar to that of the superior courts of common law at Westminster.