The Cotswolds are a range of hills in southwestern and west-central England, an area 25 miles (40 km) across and 90 miles (145 km) long. The area has been designated as the Cotswold Area of Outstanding Natural Beauty. The highest point in the Cotswolds range is Cleeve Hill at 1,083 ft (330 m), 2.5 miles (4 km) to the north of Cheltenham.

The Cotswolds lie mainly within the ceremonial counties of Gloucestershire and Oxfordshire, but extend into parts of Wiltshire, Somerset, Worcestershire and Warwickshire. The hills give their name to the Cotswold local government district in Gloucestershire, which administers a large part of the area.

The name Cotswold is sometimes attributed the meaning sheep enclosure in rolling hillsides, incorporating the term wold meaning woodland. The English Place-Name Society has for many years accepted that the term Cotswold is derived from Codesuualt of the twelfth century or other variations on this form, the etymology of which was given 'Cod's-wold', which is 'Cod's high open land'. Cod was interpreted as an Old English personal name, which can be recognised in further names: Cutsdean, Codeswellan, and Codesbyrig, some of which date back to the eighth century AD. It has subsequently been noticed that "Cod" could philologically derive from a Brittonic female cogname "Cuda", which is the name of a mother goddess recognised in the Cotswold region.