常任上诉法官（英语：Lords of Appeal in Ordinary），简称上院法官（英语：Law Lords），是指根据《1876年上诉司法权法令》任命，负责在英国上议院行使其司法职能的法官，对本土绝大部份案件扮演终审法院法官的角色。一众常任上诉法官之中，地位最高的一位称作首席常任上诉法官，地位相当于后来的联合王国最高法院院长。

随着联合王国最高法院在2009年10月1日设立，上议院已不再拥有司法职能，常任上诉法官一职也随之废除。最后一批的常任上诉法官大部份均过渡成为联合王国最高法院法官，他们从最高法院退休以前，均暂时丧失原有在上议院投票和发言的权利。

Lords of Appeal in Ordinary, commonly known as Law Lords, were appointed under the Appellate Jurisdiction Act 1876 to the House of Lords of the United Kingdom in order to exercise its judicial functions, which included acting as the highest court of appeal for most domestic matters. The House of Lords, however, lost its judicial functions upon the establishment of the Supreme Court of the United Kingdom in October 2009; those in office became Justices of the Supreme Court of the United Kingdom and lost their right to speak and vote in the House of Lords until their retirement as Justices of the new court.