Carhenge is a replica of England's Stonehenge located near the city of Alliance, Nebraska, USA. Instead of being built with large standing stones, Carhenge is formed from vintage American automobiles, all covered with gray spray paint. Built by Jim Reinders as a memorial to his father, it was dedicated at the June 1987 summer solstice.

While living in England, Reinders studied the structure of Stonehenge, which helped him to copy the structure's shape, proportions, and size. Other automobile sculptures were subsequently added to the location of Carhenge, which is now known as the Car Art Reserve.

Carhenge consists of 38 automobiles arranged in a circle measuring about 29 metres (95 ft) in diameter. Some are held upright in pits 1.5 metres (4.9 ft) deep, trunk end down, and arches have been formed by welding automobiles atop the supporting models. The heelstone is a 1962 Cadillac.

Carhenge replicates Stonehenge's current "tumble-down" state, rather than the original stone circle erected between 2500 BC and 2000 BC.

Carhenge features in the 2007 travel book 1,000 Places to See in the USA and Canada Before You Die.