The Cherhill white horse is the second oldest of the Wiltshire horses. It is situated on the edge of Cherhill Down, off the A4 Calne to Marlborough road just east of the village of Cherhill, and is just below the earthwork known as Oldbury Castle. Nearby is the obelisk known as the Lansdowne Monument. Very well placed high on a steep slope, the horse is easily visible from below and from a distance.
It may well have been inspired by the Westbury horse, as it was cut in 1780, just two years after that first Wiltshire horse was recut to a new design. The Cherhill white horse is the work of a Dr Christopher Alsop of Calne, sometimes referred to as "the mad doctor".