Demonology: List of Demon Names, Devils, Monsters & Evil Spirits

Beleth

Beleth, the 30th spirit, is a mighty King who rides a pale horse with trumpets playing before him.

Belial (or Beliaal) is Hebrew for "without value." He is known as Beliar in Greek.

The name Belphegor is a corruption of the biblical name Baal-Peor, the god of the Moabites.

Berith, the 28th spirit, is a Duke who appears as a soldier with red clothing.

Bhairava is the "terrible" aspect of Shiva. According to the Puranas, it was this aspect that severed Brahman's fifth head.

Bifrons, the 46th spirit, is an Earl who appears as a monster or a man.

Botis, the 17th spirit, is a President and Earl who appears in the form of a viper or in human form.

Buer, the 10th spirit, is a President who appears in Sagittary, and that is his shape when the Sun is there.