Warbosses are the military leaders within the race of Orks. There are two types of Warbosses. Local Ork governments, composed of a single Nob or a council of Nobs, will appoint a Warboss who will defend their community against outside aggressors or in some cases start a war with other Orks or members of non-Ork races, often for the sheer pleasure of it.

The other type of Warboss is appointed by an Ork government or a private group of Orks when they provide their soldiers to non-Ork factions for service as mercenaries.