The Evil Principle or Being of the ancient Persians; the Prince of Darkness as opposer to Ormuzd, the King of Light.

the spirit of evil in Zoroastrianism; arch rival of Ormazd

Zoroastrian twin of Ahura Mazda, or Ormazd, the Wise Lord. Originally conceived as his offspring, Angra Mainyu, the Destructive Spirit.

In the fictional Warhammer 40,000 universe, Ahriman, Sorcerer of the Red Cyclops, was the Chief Librarian of the Thousand Sons Legion, and - after his Primarch, Magnus the Red - the most powerful of all Chaos sorcerers.

Ahriman is a character from the .