Alien Nation/Portal

Alien Nation could refer to:
 * Alien Nation, A 1988 feature film.
 * Alien Nation, A 1989 television series.
 * Alien Nation: Dark Horizon, A 1994 television movie.
 * Alien Nation: Body and Soul, A 1995 television movie.
 * Alien Nation: The Enemy Within, A 1996 television movie.
 * Alien Nation: Millennium, A 1996 television movie.
 * Alien Nation: The Udara Legacy, A 1997 television movie.
 * Alien Nation, Official DC Comics adaptation of the Twentieth Century Fox motion picture.
 * Alien Nation: A Breed Apart, A 1990 4-issue limited series by Malibu Comics.