In demonology Eligos is a Great Duke of Hell, ruling sixty legions of demons. He discovers hidden things, and knows the future, of wars, and how soldiers should meet. He also attracts the favours of lords, knights and other important persons.

He is depicted in the form of a goodly knight carrying a lance, an ensign and a sceptre (a serpent to other authors).

Other spellings: Abigor, Eligor

See also The Lesser Key of Solomon, Ars Goetia.