The ancient carnyx was a wind instrument used by the Celts during the Iron Age, between c. 200 BC and c. AD 200. It was a type of trumpet made of bronze with an elongated S shape, held so that the long straight central portion was vertical and the short mouthpiece end section and the much wider bell were horizontal in opposed directions. The bell was styled in the shape of the head of an open-mouthed boar or other animal.

It was used in warfare, probably to incite troops to battle and intimidate opponents. The instrument's significant height allowed it to be heard over the heads of the participants in battles or ceremonies.