J
- Jaraxxus (World of Warcraft)
- Jabor (Jonathan Stroud, Bartimaeus Trilogy)
- Jack Ferriman (Ghost Ship movie)
- Jadis (C. S. Lewis, The Chronicles of Narnia)
- Jakabok Botch (Clive Barker, Mister B. Gone)
- Jan Valek (Vampires)
- Jerry (Fright Night)
- Jose, the Funk Metal Zombie (Lollipop Chainsaw)
- Janemba (Dragon Ball Z: Fusion Reborn)
- Japhrimel (Dante Valentine fantasy novel series)
- Jason Voorhees (Friday The 13th)
- Jennifer Check (Jennifer's Body horror film)
- Juiblex (Dungeons & Dragons role-playing game)
Read more about this topic: List Of Fictional Demons