2011 referendum

2011 referendum may refer to:


 * 2009–2011 Catalan independence referendums
 * 2011 Egyptian constitutional referendum
 * 2011 Irish constitutional referendums
 * 2011 Italian referendums
 * 2011 Liberian constitutional referendum
 * 2011 Liechtenstein referendums
 * 2011 Moroccan constitutional referendum
 * 2011 New Zealand voting system referendum
 * 2011 Palauan casino referendum
 * 2011 Seoul free lunch referendum
 * 2011 South Ossetian referendum
 * 2011 South Sudanese independence referendum
 * 2011 United Kingdom Alternative Vote referendum
 * Results of the 2011 United Kingdom Alternative Vote referendum
 * 2011 Welsh devolution referendum