Old One (disambiguation)

"Old One" is an ambiguous term in the Cthulhu Mythos, and may refer to:
* Great Old Ones, a pantheon of dormant alien deities buried inside the Earth, including, Cthulhu. (The Call of Cthulhu).
* Outer Gods, a pantheon of deities who break inside the universe through Yog-Sothoth (The Dunwich Horror).
* Entities who can defeat the Deep Ones using a swastika symbol (The Shadow Over Innsmouth).
* Inhabitants of K'n-yan (The Mound).
* Elder Things, a species of alien lifeforms (At the Mountains of Madness).
* The Mi-Go, another extraterrestrial species, also known as the Outer Ones. (The Whisperer in Darkness)
* The inhabitants of the City of the Winged One, whose last representative slaughtered the Black Corsairs and Bêlit, and was killed by Conan (Queen of the Black Coast).