| Alien - El octavo pasajero |
Argentina / International (Spanish title) / Mexico / Peru |
| Alien |
Japan (English title) / Sweden |
| Alien, el octavo pasajero |
Spain (imdb display title) / Uruguay |
| Alien: Osmi putnik |
Croatia (imdb display title) / Yugoslavia (imdb display title) (Croatian title) |
| Пришълецът |
Bulgaria (Bulgarian title) |
| Чужoй |
Russia |
| A nyolcadik utas: a Halál |
Hungary |
| Alien - Das unheimliche Wesen aus einer fremden Welt |
West Germany |
| Alien - Den 8. passager |
Denmark |
| Alien - Director's Cut |
Germany (director's cut) |
| Alien - Kahdeksas matkustaja |
Finland (imdb display title) |
| Alien - Le huitième passager |
France |
| Alien - O 8.º Passageiro |
Portugal |
| Alien - den 8. passageraren |
Finland (imdb display title) (Swedish title) |
| Alien den åttonde passageraren |
Sweden |
| Alien, de achtste passagier |
Belgium (imdb display title) (Flemish title) |
| Alien, el octavo pasajero: El montaje del director |
Spain (director's cut) |
| Alien, o Oitavo Passageiro |
Brazil |
| Alien, o epivatis tou diastimatos |
Greece (transliterated ISO-LATIN-1 title) |
| Alien: Den åttende passasjer |
Norway |
| Alien: The Director's Cut |
USA (director's cut) |
| Ha-Nose'a HaShmini |
Israel (Hebrew title) |
| L'étranger: le huitième passager |
Canada (French title) |
| Obcy - 8. pasazer Nostromo |
Poland (imdb display title) |
| Osmi potnik |
Slovenia (imdb display title) |
| Osmi putnik |
Yugoslavia (Serbian title) |
| Star Beast |
USA (working title) |
| Tuđin |
Serbia |
| Tulnukas |
Estonia (promotional title) |
| Vetrelec |
Czechoslovakia (Czech title) |
| Votrelec |
Czechoslovakia (Slovak title) |
| Yaratik |
Turkey (Turkish title) |