In demonology Andras is a Great Marquis (a Prince to other authors) of Hell, having under his command thirty legions of demons. He sows discord among people. This is a dangerous demon, because if the conjurer has not care he will kill him, his fellows, his assistants, and any other person present.

Andras is depicted as an angel with or without wings depending on the source, with the head of a raven (of an owl according to other sources), riding a black and strong wolf, and with a sharp and bright sword in his hand.

See also The Lesser Key of Solomon, Ars Goetia.