List of political parties in Northern Ireland

Although Northern Ireland is a part of the United Kingdom, it has a quite distinct party system from the rest of the country, as the Labour Party and Liberal Democrats do not contest elections there (though the Liberal Democrats have links with the Alliance Party), and the Conservative Party has received only limited support in recent elections. Party affiliation is generally based on religious and ethnic background.

Source: Wikipedia — List of political parties in Northern Ireland (CC BY-SA 4.0)