"Aliens Act" or "Alien Act" can refer to:
The Aliens Act 1698 (11 Will. 3 c. 6) (England) The Alien Act 1705 (England) The Aliens Act 1793 (GB) The Aliens Act 1905 (UK) The Aliens Act of 1937 (South Africa) The Aliens Act 1880 (NZ) The Alien and Sedition Acts (USA) The Aliens Act of 2005 (Sweden) ()