Dagon is a short story written by H.P Lovecraft. It was written in July 1917 and is one of the first stories that Lovecraft wrote as an adult. It was first published in the November 1919 edition of The Vagrant (issue #11). Dagon was later published in Weird Tales. Dagon is the first of Lovecraft’s stories to introduce a Cthulhu Mythos element — the sea deity Dagon itself.