Events from the year 2003 in the European Union.
The year was designated the European Year of People with Disabilities by the Council of Europe.
Incumbents
Events
January
February
March
- 8 March - In the first of many referendums held across Europe this year, the electorate of Malta votes to join the European Union.
- 23 March - The electorate of Slovenia votes to join the European Union.
April
- 9 April - The European Parliament approves the accession of Cyprus, the Czech Republic, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Slovakia and Slovenia, who are expected to join the EU the following year subject to the result of national referendums.
- 12 April - Amid a lower than expected turnout, the electorate of Hungary votes to join the European Union.
- 16 April - The Treaty of Accession 2003 is signed in Athens by the 15 current member nations of the European Union and Cyprus, the Czech Republic, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Slovakia and Slovenia. At 4,900 pages, it is the longest treaty in EU history.
May
June
July
September
October
References