Alien
- A View from the Top of the World
- ATLiens
- AliEn (ALICE Environment)
- Alian District
- Alians
- Alien (1982 video game)
- Alien (1984 video game)
- Alien (Alien album)
- Alien (Armenian TV series)
- Alien (Beam album)
- Alien (Britney Spears song)
- Alien (Jonas Blue and Sabrina Carpenter song)
- Alien (Northlane album)
- Alien (Strapping Young Lad album)
- Alien (band)
- Alien (file converter)
- Alien (film)
- Alien (franchise)
- Alien (law)
- Alien (sculpture)
- Alien (shipping company)
- Alien (soundtrack)
- Alien 3
- Alien 4 (disambiguation)
- Alien Project (disambiguation)
- Alien Resurrection
- Alien Sun
- Alien Technology
- Alien UFO technologies
- Alien Visitor
- Alien novels
- Alien species
- Alien vs. Predator (disambiguation)
- Alien vs. Predator (film)
- Alienoid
- Aliens (1982 video game)
- Aliens (1990 video game)
- Aliens (Dark Horse Comics line)
- Aliens (Roseanne)
- Aliens (Star Trek Roleplaying Game)
- Aliens (Tappan Wright novel)
- Aliens (film)
- Aliens (song)
- Aliens (soundtrack)
- Aliens!
- Astrobiology
- Beach House
- Conspiracy No. 5
- Covergirl (Jared Louche and The Aliens album)
- Dead Letter Circus (EP)
- Dear Frustrated Superstar
- Dennis Lloyd
- Enemy alien
- Extraterrestrial intelligence
- Extraterrestrial life
- Fear of Fours
- Fictional alien life-forms
- First Two Pages of Frankenstein
- Humanoid (Tokio Hotel album)
- Landsale (album)
- Lee Su-hyun
- Life Through a Window
- Loveboat (album)
- Outsider (disambiguation)
- Predator (disambiguation)
- Quiet Life
- Quinella (album)
- SKZ-Replay
- Sixteen Stone
- Space (The Devil Wears Prada EP)
- Straight Ahead (Pennywise album)
- Tankard (band)
- The Alien (2016 film)
- The Alien (Auf Wiedersehen, Pet)
- The Alien (novel)
- The Alien (unproduced film)
- The Aliens (Australian band)
- The Aliens (Scottish band)
- The Aliens (TV series)
- The Aliens (play)
- Thierry Mugler
- Thriving Ivory (album)
- UFO (disambiguation)
- Unidentified flying object (disambiguation)
- Warlord (California band)
- Xenomorph