In the ''[[World of Greyhawk]]'' [[campaign setting]] and the default pantheon of deities for the ''[[Dungeons & Dragons]]'' role-playing game, '''Erythnul''' is the [[Oeridian]] god of hate, envy, malice, panic, ugliness, and slaughter. He is known as the Many, and is worshipped by many [[gnoll]], [[troll]], [[ogre]] , and [[bugbear]] tribes, in addition to humans. Erythnul delights in panic and slaughter.

In civilized lands, Erythnul's followers (including evil fighters, barbarians , and rogues) form small, criminal cults. In savage lands, evil barbarians, gnolls, bugbears, ogres , and trolls commonly worship him.