Benson is a village and civil parish in South Oxfordshire, England. The 2011 Census gave the parish population as 4,754. It lies about a mile and a half north of Wallingford at the foot of the Chiltern Hills, where a chalk stream, Ewelme Brook, joins the River Thames next to Benson Lock.

South Oxfordshire is a local government district in the ceremonial county of Oxfordshire, England. Its council is temporarily based outside the district at Abingdon-on-Thames pending a planned move to Didcot, the district's largest town. The areas located south of the River Thames are within the historic county of Berkshire.