List of numbered roads in the British Isles

This is a list of numbered roads in the United Kingdom, the Crown Dependencies and Ireland.

Euroroutes
European routes are not listed or commonly used in the United Kingdom. They are shown on road signs (as small, supplemental numbers) but not commonly used in the Republic of Ireland.

Major roads

 * Great Britain
 * A roads: Zone 1 · Zone 2 · Zone 3 · Zone 4 · Zone 5 · Zone 6 · Zone 7 · Zone 8 · Zone 9
 * Northern Ireland
 * List of A roads in Northern Ireland
 * Isle of Man
 * List of roads in the Isle of Man
 * Jersey
 * Ireland
 * Ireland

Minor roads

 * Great Britain
 * B roads: Zone 1 · Zone 2 · Zone 3 · Zone 4 · Zone 5 · Zone 6 · Zone 7 · Zone 8 · Zone 9
 * Northern Ireland
 * List of B roads in Northern Ireland
 * Ireland