Conventicle Act may refer to:

English Acts of Parliament: Conventicle Act 1664 Conventicles Act 1670 Conventicle Act (Sweden), in effect 1726–1858 in Sweden and until 1870 in Finland Conventicle Act (Denmark–Norway); in effect 1741–1848 in Denmark and until 1842 in Norway

See also Religion Act 1592, in England