In the works of H. P. Lovecraft, the Other Gods are a group of higher deities that protect the Gods of Earth. Their leader is Azathoth, and their "soul and messenger" is Nyarlathotep (HPL: "The Other Gods", The Dream-Quest of Unknown Kadath). In the Expanded Mythos, these creatures are identified as the Outer Gods.
The role-playing game Call of Cthulhu acknowledges two meanings of the term "Other Gods". The first is the same as the Outer Gods, while the second is more specific, referring to a group of Outer Gods that dwell in the Court of Azathoth. The least prestigious of them are collectively referred to as the Lesser Other Gods.
Marvel Comics[]
In Marvel Comics, the Other Gods are confused with the Great Old Ones often enough to be categorized the same.
Nyarlathotep is the only known Other God[1].