Which countries border Ireland?
Ireland shares a land border with only one country: the United Kingdom. That is the fewest a country with a land border can have.
Ireland and its neighbours on a map
Ireland is shown in green and its neighbour in blue. Click a neighbour to see the countries that border it.
- Ireland
- Land neighbours
Every neighbour of Ireland
| Country | Its own land neighbours |
|---|---|
| United Kingdom | 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 Ireland?
On a phone this uses GPS. The calculator opens with Ireland already selected and measures the straight-line distance to its nearest border.
Questions
Which countries border Ireland?
Ireland shares a land border with only one country: the United Kingdom.
How many countries border Ireland?
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 Ireland 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.