This article is about the Thames Valley in southern England. For New Zealand's Thames Valley region, see Thames Valley, New Zealand

The Thames Valley is generally the region that drains into the River Thames, England, but is used in a more specific term by the government.

In its more specific sense, as used in the name of Thames Valley Police, it refers to the areas of Berkshire, Buckinghamshire, Milton Keynes and Oxfordshire. There is also a Thames Valley Chamber of Commerce that covers this area, a Thames Valley Business Partnership and a Thames_Valley_University.

The area is covered by a single Britain in Bloom region called Thames and Chilterns : this term is also promoted as a tourist destination.

Major towns

• Abingdon
• Aylesbury
• Banbury
• Faringdon
• High Wycombe
• Maidenhead
• Milton Keynes
• Reading
• Oxford
• Slough
• Wokingham