The Alliance Party of Northern Ireland is a liberal and non-sectarian political party in Northern Ireland. It is neutral on the issue of whether Northern Ireland should stay in or leave the United Kingdom. The party currently has 7 out of 90 seats in the Northern Ireland Assembly and 1 MP in the House of Commons of the United Kingdom. Its current leader is Naomi Long.
The party was founded in 1970 and gained its first elected Member of Parliament (MP) at the 2010 UK General Election. It is close to the British Liberal Democrats.