Ghast may refer to:
A creature in H.P. Lovecraft's novella The Dream-Quest of Unknown Kadath
Ghast (Dungeons & Dragons), an undead creature in the Dungeons & Dragons role-playing game
A creature in the Spook's series by Joseph Delaney
Cliff-ghast, a creature in the His Dark Materials trilogy
Ghast, a creature in the video game Minecraft
