Cthulhu is a being.
Cthulhu ( [ - all ( k ) ʟ̝̊ʊlʔɬuː ] ) is a cosmic entity created by writer H. P. Lovecraft and first introduced in the short story `` The Call of Cthulhu '' , published in the American pulp magazine Weird Tales in 1928 . Considered a Great Old One within the pantheon of Lovecraftian cosmic entities , the creature has since been featured in numerous popular culture references . Lovecraft depicts Cthulhu as a gigantic entity worshipped by cultists . Cthulhu is a 2007 American horror film directed by Dan Gildark and co-written by Grant Cogswell and Daniel Gildark . Cthulhu Mythos . Authors of Lovecraftian horror use elements of the Cthulhu Mythos in their efforts to continue the expansion of the fictional universe .