In the Dungeons & Dragons fantasy roleplaying game, the bebilith is a type of fictional monster for player characters to encounter.
The bebilith first appeared in second edition in the Monstrous Compendium Outer Planes Appendix (1991),[1] and was further detailed for the Planescape setting in the first Planescape Monstrous Compendium Appendix (1994).[2]
The bebilith appeared under the demon entry in the third edition Monster Manual (2000),[3] and in the 3.5 revised Monster Manual (2003).[4]
The bebilith is an arachnid creature that hunts tanar'ri in the Abyss.
Originally, in 2nd edition AD&D the bebilith was not listed as a tanar'ri, but in 3rd edition D&D the bebilith was listed as a demon.