Shub-Niggurath, often associated with the phrase “The Black Goat of the Woods with a Thousand Young”, is a deity in the Cthulhu Mythos of H. P. Lovecraft. The only other name by which H. P. Lovecraft referred to her was "Lord of the Wood" in his story "The Whisperer in Darkness".
Shub-Niggurath is first mentioned in Lovecraft's revision story "The Last Test" (1928); she is never actually described in Lovecraft's fiction, but is frequently mentioned or called upon in incantations. Most of her development as a literary figure was carried out by other Mythos authors, including August Derleth, Robert Bloch, and Ramsey Campbell.
August Derleth classified Shub-Niggurath as a Great Old One, but the Call of Cthulhu role-playing game classifies her as an Outer God. The CthulhuTech role-playing game, in turn, has returned to Derleth's classification of Shub-Niggurath as aGreat Old One.