Bituitus (fl. 2nd century BCE) was a king of the Arverni, a Gaulish tribe living in what is now the Auvergne region of France. The Arverni were a powerful opponent of the Roman Republic during the 3rd and 2nd centuries under the leadership of Luernius, the father of Bituitus. In 121 BCE,[1] Bituitus was defeated by the Roman general Fabius Maximus, ending the power of the Arverni in Mediterranean Gaul, or present-day southern France. The defeat of the Arverni resulted in the establishment of the Roman province of Gallia Narbonensis.