In demonology Sabnock is a mighty Great Marquis of Hell, who has fifty legions of demons under his command. He builds high towers, castles and cities, furnishing them with weapons, ammunition, etc., gives good familiars, and can afflict men for several days (thirty to some authors) making gangrene their wounds and sores or filling them with worms. According to other authors he can also transform men in stone.

Sabnock is depicted as a soldier with armour and weapons, the head of a lion, and riding a pale horse.

Other spellings: Sab Nac, Sabnac, Sabnach, Sabnack, Sabnacke, Salmac, Savnock.

See also The Lesser Key of Solomon, Ars Goetia.