Justifier may refer to:
Something which justifies In the theory of justification, something which justifies a belief The Justifier, a light gun peripheral manufactured by Konami for various game consoles "Justifier", a song by Australian pop/rock band Big Pig Justifier, fictional flying ship in the Marvel Comics universe, used by vigilante team The Jury Justifier, an alternate Dungeons & Dragons character class Justifiers RPG, a tabletop role-playing game