Official French version
The Derelict = L'épave
The Company = La Compagnie
Android = Androïde
Mother = Mère / Maman (depending on the translations)
Fiorina 161 = Furie 361 (uh, sure, WTF were you even smoking, translators)
Engineers = Ingénieurs
Coccoon = Cocon
Eggs = Œufs
The Queen = La Reine
Here are the words which are NOT officially translated, so I'm providing personal translations.
Alien = Étranger
Predator = Prédateur
Facehugger = Étreigneur de visage
Chestburster = Creveur de poitrine
Hammerpede = Marteltête
Trilobite = Trilobite
The Deacon = Le Diacre
Space jockey = Pilote de l'espace
Newt = Têtard