The River Dorn is a river in Oxfordshire

Oxfordshire

Oxfordshire is a county in the South East region of England, bordering on Warwickshire and Northamptonshire , Buckinghamshire , Berkshire , Wiltshire and Gloucestershire ....

, England, that is a tributary of the River Glyme

River Glyme

The River Glyme is a river in Oxfordshire, England. It is a tributary of the River Evenlode. It rises about east of Chipping Norton, and flows south east past Old Chalford, Enstone, Kiddington, Glympton and Wootton, Woodstock and through Blenheim Park. At Wootton the Glyme is joined by a...

. The river rises from the limestone uplands of north Oxfordshire

Oxfordshire

Oxfordshire is a county in the South East region of England, bordering on Warwickshire and Northamptonshire , Buckinghamshire , Berkshire , Wiltshire and Gloucestershire ....

, about 1.5 miles (2.4 km) east of Chipping Norton

Chipping Norton

Chipping Norton is a market town in the Cotswold Hills in the West Oxfordshire district of Oxfordshire, England, about southwest of Banbury.-History until the 17th century:...

 , and flows southeast past Little Tew

Little Tew

Little Tew is a village and civil parish about northeast of Chipping Norton and southwest of Banbury in Oxfordshire. The parish is bounded to the northwest by the River Swere and a road between Little Tew and Hook Norton, to the north by a tributary of the River Cherwell and to the south by an...

; through Sandford St. Martin

Sandford St. Martin

Sandford St. Martin is a village and civil parish in West Oxfordshire about east of Chipping Norton and about south of Banbury.The village was known as Sandford until about 1884, when the suffix St. Martin was added to distinguish the village from other local settlements with similar names. The...

, where it forms part of Sandford Park's gardens; and through the Bartons: Westcott Barton

Westcott Barton

Westcott Barton, also spelt Wescot Barton or Wescote Barton, is a village and civil parish on the River Dorn in West Oxfordshire about east of Chipping Norton and about south of Banbury...

, Middle Barton, where Cockley Brook joins it, and Steeple Barton

Steeple Barton

Steeple Barton is a civil parish and scattered settlement on the River Dorn in West Oxfordshire, about east of Chipping Norton, a similar distance west of Bicester and south of Banbury...

 — before it joins the River Glyme just east of Wootton

Wootton, West Oxfordshire

Wootton is a village and civil parish on the River Glyme about north of Woodstock, Oxfordshire. The village is sometimes referred to as Wootton-by-Woodstock to distinguish it from Wootton, Vale of White Horse, which was in Berkshire but was transferred to Oxfordshire in the 1974 local authority...

.