United Kingdom
* River Don (Aberdeenshire),
* River Don (South Yorkshire), also called the (Sheffield) Don, a river in South and West Yorkshire, England.
Yorkshire
* River Don, Greater Manchester, a river in Greater Manchester, England.
* River Don (South Yorkshire) or (Sheffield) Don, a river in South and West Yorkshire, England.
* River Don (River Aire) or (Dearne) Don, a tributary of the River Aire in South Yorkshire, England.
* River Don, Calderdale, a tributary of the River Calder in West Yorkshire, England.
Scotland
* River Don, Aberdeenshire, a river in Aberdeenshire, Scotland, flowing through Strathdon.
* Water of Don, a tributary of Loch Lomond in the Highlands of Scotland.
* Water of Don, a river in the Scottish Borders.
Wales
* Afon Don, also called the Afon Dyfi, a river in Ceredigion, Wales.