This is a compendium of the known “Great Old Ones” of the Cthulhu Mythos of H. P. Lovecraft, his friends and successors, and many later writers and creators. For an explanation of the classification term Great Old Ones, please refer to the linked page.
Overview
This article is a list of the currently known names, aliases, and brief descriptions of the Great Old Ones. Some of the famous or notable Great Old Ones are explained under separate subheadings.
In Chaosium’s role-playing game Call of Cthulhu and other works, deities classified as “Outer Gods” are listed on the linked page, provided there are no discrepancies in their classification across editions.