Arnault was a French automotive manufacturer active from 1968 to 1972, based in Garches, France. The company is best known for producing the Arnault K5T, a fun and utility vehicle that shared a similar concept with the Renault Rodeo.

The Arnault K5T featured a lightweight fiberglass body mounted on a Renault 4 platform, which contributed to its versatility and appeal. It was available in three distinct versions: the Tarantelle, a basic 2/3-seater model; the Taiga, which included a solid roof cabin; and the Toundra, characterized by a fixed cabin design.

Despite its innovative design and utility, Arnault ceased operations in 1972, marking the end of its brief presence in the automotive market.