Charrat is a former municipality in the district of Martigny in the canton of Valais in Switzerland. On 1 January 2021 the former municipality of Charrat merged into the municipality of Martigny.

Martigny is the capital city of the district of Martigny, canton of Valais, Switzerland. It lies at an elevation of 471 meters (1,545 ft), and its population is approximately 20,000 inhabitants. It is a junction of roads joining Italy, France and Switzerland. One road links it over the Great St. Bernard Pass to Aosta (Italy), and the other over the col de la Forclaz to Chamonix (France). In winter, Martigny is known for its numerous nearby Alp ski resorts such as Verbier.