Night-Gaunts are a species of flying creatures inhabiting Earth's Dreamlands. They are described as having smooth whale-like skin, humanoid bodies, curving horns, and wings.

The concept of Night-Gaunts first came to Lovecraft as a young child, in a series of recurring nightmares in which "they would whirl me through space at a sickening rate of speed, the while fretting & impelling me with their detestable tridents"