Gallowstree Common is a village in Oxfordshire, England.
It is situated within the RG9 postcode district, which is within the Henley-on-Thames post town.
RG9 is the only postcode district within the Henley-on-Thames post town.
The Henley-on-Thames post town is within the Reading postcode area.
Administrative Ward: Sonning Common
Administrative District: South Oxfordshire
Administrative County: Oxfordshire
Country: England
UK Parliament: Henley
NHS Local Health Authority: South Central
NHS Region: Southern