2003 Estonian European Union membership referendum
14 September 2003
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Are you in favour of joining the European Union and adopting amendments to the Constitution of the Republic of Estonia? | ||||||||||||||||||||||
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A referendum took place on 14 September 2003 to decide whether Estonia should join the European Union (EU). Just over two-thirds of voters voted Yes and Estonia joined the EU on 1 May 2004.
As of 2025, this was the most recent referendum in Estonia.