Barton Stacey is a village and undulating civil parish, which includes the hamlets of Bransbury, Newton Stacey, Drayton and Cocum, in the Test Valley district of Hampshire, England, centred about 7 miles (11 km) south-east of Andover. It is bounded to the north by the estate of Drayton Lodge, and, to the south, by the minor A30 road; both being east–west routes, and connected by The Street/Cocum Road, the main road that bisects the village. The distance between the A303 and A30 at this point is 2 miles (3.2 km), which is twice the width of the parish.

Test Valley is a local government district with borough status in Hampshire, England, named after the valley of the River Test. The council is based in the borough's largest town of Andover. The borough also contains the town of Romsey and numerous villages and surrounding rural areas. A small part of the borough at its southern end lies within the New Forest National Park, and part of the borough north of Andover lies within the North Wessex Downs, a designated Area of Outstanding Natural Beauty.