Oxfordshire (abbreviated Oxon, from the Latinised form Oxonia) is a county in the South East of England, bordering on Northamptonshire, Buckinghamshire, Berkshire, Wiltshire, Gloucestershire, and Warwickshire.

It is divided into five local government districts: Oxford, Cherwell, Vale of White Horse (after the Uffington White Horse), West Oxfordshire and South Oxfordshire.

The county has a major tourism industry. The area is noted for the concentration of performance motorsport companies and facilities. Oxford University Press has headed a concentration of print and publishing firms; the university is also linked to the concentration of local biotechnology companies.

The main centre of population is the city of Oxford. Other significant settlements are Bicester, Banbury, Kidlington, and Chipping Norton to the north of Oxford; Witney to the west; Thame and Chinnor to the east; and Abingdon, Wantage, Didcot and Henley-on-Thames to the south. Future population growth in the county is hoped to be concentrated around Banbury, Bicester, Didcot and Witney, near the South Midlands growth area.