Corsham is a historic market town and civil parish in west Wiltshire, England. It is at the south-western edge of the Cotswolds, just off the A4 national route, 28 miles (45 km) southwest of Swindon, 20 miles (32 km) east of Bristol, 8 miles (13 km) northeast of Bath and 4 miles (6 km) southwest of Chippenham.

Baron Methuen, of Corsham in the County of Wiltshire, is a title in the Peerage of the United Kingdom. It was created in 1838 for the former Member of Parliament for Wiltshire and Wiltshire North, Paul Methuen. His grandson, the third Baron, was a distinguished soldier who became Field marshal. His son, the fourth Baron, was a professional artist and Royal Academician. On his death, the title passed to his younger brother, the fifth Baron. The seventh Baron, who succeeded his elder brother in 1994, was one of the ninety hereditary peers elected to the House of Lords after the passage of the House of Lords Act 1999, and sat on the Liberal Democrat benches. As of 2014, the title is held by his first cousin once removed, the eighth baron, who succeeded to the title in that year.