| Referendum on the Treaty on Stability, Coordination and Governance in the Economic and Monetary Union (Thirtieth Amendment of the Constitution Bill 2012) | 31-May-2012 |
| Referendum on Houses of the Oireachtas Inquiries (Thirtieth Amendment of the Constitution Bill 2011) | 27-October-2011 |
| Referendum on Judges' Remuneration (Twenty-Ninth Amendment of the Constitution Bill 2011) | 27-October-2011 |
| Referendum on the Lisbon Treaty (Twenty-Eighth Amendment of the Constitution Bill 2009) | 2-October-2009 |
| Referendum on The Lisbon Treaty (Twenty-Eighth Amendment of the Constitution Bill 2008) | 12-June-2008 |
Referendum on Citizenship
Twenty Seventh Amendment of the Constitution Bill, 2004 | 11-June-2004 |
| Treaty of Nice (2002) | 19-October-2002 |
| 25th Amendment of Constitution(Protection of Human life in Pregnancy) Bill 2002 | 6-March-2002 |
Prohibition of Death Penalty (2001)
The Twenty-first Amendment of the Constitution (No. 2) Bill, 2001 | 7-June-2001 |
