The Registration Act (2 Anne c. 7 (I); long titleAn Act for registering the Popish Clergy) was an act of the Parliament of Ireland passed in 1704, which required all "Popish" (Roman Catholic) priests to register at their local magistrates' court, to pay two 50-pound bonds to ensure good behavior, and to stay in the county where they registered.
The act was one of a series of Penal Laws passed after the Williamite War to protect the victorious Protestant Ascendancy from a church seen as loyal to the defeated Jacobites and to foreign powers. Its second section stated that if an Irish Catholic priest was to convert to the establishedChurch of Ireland, he would receive a 20-pound stipend, levied on the residents of the area where he had last practised. Unregistered clergy were to depart Ireland before the 20 July 1704 and any remaining after 24 June 1705 would be deported. Any that returned would be punished as under the Banishment Act 1697 (as high treason). These were sought by freelance "priest hunters".