A
- Abalam (The Last Exorcism)
- Abizo the Dybbuk (The Possession)
- Abraxas (Charmed TV series)
- Abbadon (Cassandra Clare, City of Bones)
- Agrajag, (Douglas Adams, Life, the Universe and Everything)
- Agrith-Naar (RuneScape online role-playing game)
- Aku (Samurai Jack)
- Alastair (Supernatural TV series)
- Alastor (Dark-Hunter book series)
- Algaliarept (Kim Harrison, Hollows print series)
- Alichino (Dante's Inferno)
- Amaimon (Blue Exorcist)
- Andariel (Diablo series)
- Anna Esseker's Demon (Mirrors)
- Anyanka (Buffy the Vampire Slayer TV series)
- Anzu (Sarah Rees Brennan, The Demon's Lexicon)
- Amel (The Vampire Chronicles)
- Archimonde (Warcraft multimedia franchise)
- Artery (Darren Shan, The Demonata)
- Asmodeus (Umineko no Naku Koro Ni)
- Asmoth (Strange)
- Astaroth (Supernatural)
- Ashtar (Catherine)
- Astaroth (Ghosts'n Goblins (series))
- Asura (Soul Eater manga)
- Azal (Doctor Who TV series)
- Azazeal (Hex TV series)
- Azal (Strange)
- Azazel (Supernatural TV series), a.k.a. the Yellow Eyed Demon and Yellow Eyes
- Azazel (Melissa de la Cruz, Blue Bloods)
- Azazel (Fallen (1998) )
- Azmodan (Diablo role-playing game series)
- Azrael (Dogma)
- Azzie Elbub (Roger Zelazny and Robert Sheckley, The Millennial Contest series)
Read more about this topic: List Of Fictional Demons