"Black Colossus" is one of the original short stories starring the fictional sword and sorcery hero Conan the Cimmerian, written by American author Robert E. Howard and first published in Weird Tales magazine, June 1933. Howard earned $130 for the sale of this story.

It's set in the pseudo-historical Hyborian Age and concerns Conan leading the demoralized army of Khoraja against an evil sorcerer named Natohk, "the Veiled One."

This story formed part of the basis for the later Conan novel, The Hour of the Dragon.