"The Nameless City" is a horror story written by American writer H. P. Lovecraft in January 1921 and first published in the November 1921 issue of the amateur press journal The Wolverine. It is often considered the first Cthulhu Mythos story.

The Nameless City of the story's title is an ancient ruin located somewhere in the deserts of the Arabian Peninsula, and is older than any human civilization. In ancient times, the Nameless City was built and inhabited by an unnamed race of reptiles with a body shaped like a cross between a crocodile and a seal with a strange head common to neither, involving a protruding forehead, horns, lack of a nose, and an alligator-like jaw. These beings moved by crawling; thus, the architecture of the city has very low ceilings and some places are too low for a human being to stand upright. Their city was originally coastal, but, when the seas receded, it was left in the depths of a desert. This resulted in the decline and eventual ruin of the city.