The chariot is a type of horse carriage used in both peace and war as the chief vehicle of many ancient peoples. Ox carts, proto-chariots, were built by the Proto-Indo-Europeans^{[citation needed]} and were also built in Mesopotamia as early as 3000 BC. The original chariot was a fast, light, open, two-wheeled conveyance drawn by two or more horses that were hitched side by side. The car was little more than a floor with a waist-high semicircular guard in front. The chariot, driven by a charioteer, was used for ancient warfare during the bronze and the iron ages. Armor was limited to a shield. The vehicle was used for travel and in processions, games, and races after it had been superseded by other vehicles for military purposes.

The word "chariot" comes from Latin carrus, which was a loan from Gaulish. A chariot of war or of triumph was called a car. In ancient Rome and other ancient Mediterranean countries a biga required two horses, a triga three, and a quadriga required four horses abreast. Obsolete terms for chariot include chair, charet and wain.