Which countries border the United Kingdom?
The United Kingdom shares a land border with only one country: Ireland. That is the fewest a country with a land border can have.
The United Kingdom and its neighbours on a map
The United Kingdom is shown in green and its neighbour in blue. Click a neighbour to see the countries that border it.
- United Kingdom
- Land neighbours
Every neighbour of the United Kingdom
| Country | Its own land neighbours |
|---|---|
| Ireland | 1 |
Think you know your neighbours?
Border Chain gives you two countries and you connect them by naming neighbours, one border at a time. A new puzzle every day.
How far are you from the United Kingdom?
On a phone this uses GPS. The calculator opens with United Kingdom already selected and measures the straight-line distance to its nearest border.
Questions
Which countries border the United Kingdom?
The United Kingdom shares a land border with only one country: Ireland.
How many countries border the United Kingdom?
One. That is the fewest a country with a land border can have.
Are borders across the sea counted?
No. Only land borders count. Countries that face the United Kingdom across water are not listed here, and neither are borders of overseas territories far from the mainland. This is the same list the Border Chain game plays with.
Countries with the most neighbours
Land borders as used by the Border Chain game, checked October 8, 2026. Country outlines from Natural Earth.