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, and Oxfordshire. There is also a Thames Valley Chamber of Commerce that covers this area.

Major Towns

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