Category:Historic Westminster constituencies in Ireland

This is for former constituencies:

• from Ireland in the parliament of the United Kingdom of Great Britain and Ireland (1801–1922)
• from Northern Ireland in the parliament of the United Kingdom of Great Britain and Northern Ireland (since 1922).

Constituencies in what is now Northern Ireland which became defunct prior to the 1922 UK General Election should be in both this category and the subcategory Category:Westminster constituencies in Northern Ireland (historic).

Constituencies in Northern Ireland created in or after 1922 (and now defunct) should only be in the subcategory, not in this category.