River Dun

The River Dun may refer to:

• River Dun (River Kennet), in the English counties of Wiltshire and Berkshire
• River Dun (River Test), in the English counties of Wiltshire and Hampshire
• River Dun, an alternative name of the River Don, Yorkshire in England
• River Dun, Northern Ireland, in County Antrim, Northern Ireland
• Dun Stone Beck, Horton in Ribblesdale