The Pirina are a group of bounty hunters and pirates. They form the antagonist in the story Piracy in Bionicle.
It is rumored that the Pirina are a band of pirates that were once in the Dark Hunters, but when that fell in the Universe in which the story takes place, they formed the Pirina. Since then, they traveled south, and have terrorized The Village. In chapter 1, it is found out that the Village's Toa Hero, Gallilfree, had joined the Pirina.