United Kingdom European Constitution referendum information
Cancelled 2006 referendum
See also: European Union Bill 2004–2005
National referendums on the European Constitutional Treaty
Superseded by the Treaty of Lisbon (2007)
Czech Republic: cancelled; never held
Denmark: cancelled; never held
France: No (55% with 69% turnout)
Ireland: cancelled; never held
Luxembourg: Yes (57% with 88% turnout)
Netherlands: No (62% with 63% turnout)
Poland: cancelled; never held
Portugal: cancelled; never held
Spain: Yes (77% with 42% turnout)
United Kingdom: cancelled; never held
Parliamentary approvals
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United Kingdom European Constitution referendum
2006 (cancelled)
Should the United Kingdom approve the Treaty establishing a Constitution for the European Union?
Part of a series of articles on
UK membership of the European Union (1973–2020)
Accession
Treaty of Accession 1972
1972 EC Act
1973 enlargement of the EC
1975 referendum
Referendum Act (results)
Treaty amendments
Single European Act, 1986
(UK ratification)
Maastricht Treaty, 1992
(UK ratification)
Treaty of Amsterdam, 1997
(UK ratification)
Treaty of Nice, 2001
(UK ratification)
Treaty of Lisbon, 2007
(UK ratification)
Related:
2011 UK Act on new EU Treaty amendments
EU-related British Acts
Proposed European Constitution referendum
European Union Bill 2004–2005
MEPs for UK constituencies
Members 1973–1979
(elected by parliament)
Members 1979–1984
(1979 election)
Members 1984–1989
(1984 election)
Members 1989–1994
(1989 election)
Members 1994–1999
(1994 election)
Members 1999–2004
(1999 election)
Members 2004–2009
(2004 election)
Members 2009–2014
(2009 election)
Members 2014–2019
(2014 election)
Members 2019–2020
(2019 election)
Women
Officials and bodies
House of Lords EU Committee
House of Commons EU Committee
Permanent EU Representatives for UK
Northern Ireland Executive in Brussels
EU Representative in London
UK European Commissioners
Department for Exiting the European Union
Issues and events
Economy
The Euro
Black Wednesday
UK budget rebate
Nationality law
Euroscepticism in the UK
United Kingdom opt-outs from EU legislation
Maastricht Rebels
Balance of Competences Review
Withdrawal
2015 UK general election
2015–2016 membership renegotiation
2016 EU membership referendum
Vote Leave
Britain Stronger in Europe
Notification of withdrawal
2017 UK general election
Brexit negotiations
Impact of Brexit
Future relationship
Withdrawal agreement
No-deal Brexit
Impact on Irish border
Northern Ireland Protocol
Parliamentary votes
Proposed second referendum
2019 UK general election
EU portal
UK portal
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A referendum was expected to take place in the United Kingdom in 2006 to decide whether the country should ratify the proposed Treaty establishing a Constitution for Europe. However, following the rejection of the Constitution by similar referendums in France in May 2005 and the Netherlands in June 2005, the UK vote was postponed indefinitely. The question was thought to have been settled when the constitution was superseded by the Treaty of Lisbon, which Parliament ratified in 2008 without holding a referendum.
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