A race of insectoid robots who travel in swarms, their purpose is to clean the island of Mata Nui as preparation for his awakening. They come in 6 different breeds, each with their own elemental power.

These include:

[[Tahnok_(bionicle)|]], Bohrok of Fire
[[Gahlok_(bionicle)|]], Bohrok of Water
[[Lehvak_(bionicle)|]], Bohrok of Acid
[[Pahrak_(bionicle)|]], Bohrok of Stone
[[Kohrak_(bionicle)|]], Bohrok of Ice
[[Nuhvok_(bionicle)|]], Bohrok of Earth

They are led by two Queens known as the "Bahrag" named [[Cahdok_(bionicle)|Cahdok]] and [[Gahdok_(bionicle)|Gahdok]].

There also exist and elite group of Bohrok called the Bohrak-Kal who wield a different set of powers.

[[Tahnok-Kal_(bionicle)|]], Bohrok-Kal of Lighting
[[Gahlok-Kal_(bionicle)|]], Bohrok-Kal of Magnetism 
[[Lehvak-Kal_(bionicle)|]], Bohrok-Kal of Vacuum
[[Pahrak-Kal_(bionicle)|]], Bohrok-Kal of Plasma
[[Kohrak-Kal_(bionicle)|]], Bohrok-Kal of Sonic
[[Nuhvok-Kal_(bionicle)|]], Bohrok-Kal of Gravity
bohrok (bionicle)