Alton is a market town and civil parish in East Hampshire, England, near the source of the northern branch of the River Wey. It had a population of 19,425 at the 2021 census. Alton was recorded in the Domesday Survey of 1086 as Aoltone. During the Saxon period Alton was known as Aweltun. The Battle of Alton occurred in the town during the English Civil War. It also has connections with Sweet Fanny Adams and Jane Austen.