* Jersey, the largest of the Channel Islands.
* Jura, an island in the Inner Hebrides of Scotland.
* John o' Groats, a village in Caithness, Scotland, which is often considered to be the northernmost point on the British mainland.
* Jarrow, a town in Tyne and Wear, England, which is known for its historical significance as a centre of shipbuilding and engineering.
* Jedburgh, a town in the Scottish Borders, which is known for its medieval architecture and its association with the Border Reivers.
* Jolly's Bottom, a village in the civil parish of Cookham, Berkshire, England.
