The Bureau of Barbarians (Greek: Προεδρείου Βαρβάρων, Proedreíou Varváro̱n) (French: Bureau des Barbarians), or PRV, is one of the main intelligence-gathering agencies of Diadochia. It is the Diadochian intelligence agency which supplies His Imperial and Royal Majesty's Government with foreign intelligence. The agency is one of the oldest agencies still in operation in Diadochia. The Bureau reports to both the Diadochian Foreign Office and Diadochian Home Office.