Irish Treaty of Lisbon referendum
# Irish Treaty of Lisbon referendum

Irish Treaty of Lisbon referendum may refer to:

* Twenty-eighth Amendment of the Constitution Bill 2008, a failed proposal to ratify the Treaty of Lisbon, held on 12 June 2008
* Twenty-eighth Amendment of the Constitution of Ireland, a second referendum to ratify the Treaty of Lisbon, held on 2 October 2009
