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2003 Czech European Union membership referendum
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| Field | Value |
|---|---|
| country | Czech Republic |
| date | 13–14 June 2003 |
| title | Do you agree with the Czech Republic becoming a member state of the European Union in accordance with the Treaty on the Accession of the Czech Republic to the European Union? |
| yes | 3,446,758 |
| no | 1,010,448 |
| invalid | 100,754 |
| electorate | 8,259,525 |
A referendum on joining the European Union was held in the Czech Republic on 13 and 14 June 2003. The proposal was supported by 77% of voters, with a turnout of 55%. The Czech Republic joined the EU on 1 May 2004.
As of 2025, this was the most recent and only national referendum in the Czech Republic.
Party positions
The table lists the political parties which were represented in the parliament at the time of the referendum.
| Position | Party | |
|---|---|---|
| Yes | Czech Social Democratic Party}}" | |
| Civic Democratic Party (Czech Republic)}}" | Civic Democratic Party | |
| Christian and Democratic Union – Czechoslovak People's Party}}" | Christian and Democratic Union – Czechoslovak People's Party | |
| Freedom Union – Democratic Union | ||
| No | Communist Party of Bohemia and Moravia}}" |
Opinion polls
Opinion polls in the run-up to the referendum showed support for joining from 63% to over 70%, with the highest support among younger, wealthier and better educated people.
| Date | Agency | Yes | No | Undecided | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 19–26 May 2003 | CVVM | **63%** | 22% | 15% | ||||||
| 7–14 April 2003 | CVVM | **58%** | 24% | 18% | ||||||
| March 2003 | STEM | **51%** | 16% | 33% | ||||||
| 3–10 March 2003 | CVVM | **59%** | 22% | 19% | ||||||
| February 2003 | title=Referendum o EU | url=https://www.stem.cz/referendum-o-eu/ | website=STEM | date=6 March 2003 | accessdate=13 March 2017 | language=cs}} | **50%** | 32% | 18% | |
| 3–10 February 2003 | title=Čtyři měsíce před referendem o připojení ČR k EU: Jak bychom dnes hlasovali. | url=http://cvvm.soc.cas.cz/media/com_form2content/documents/c1/a2914/f3/100183s_pm30224.pdf | website=CVVM | accessdate=13 March 2017 | archive-url=https://web.archive.org/web/20170314152637/http://cvvm.soc.cas.cz/media/com_form2content/documents/c1/a2914/f3/100183s_pm30224.pdf | archive-date=14 March 2017 | url-status=dead}} | **59%** | 23% | 18% |
| 28 January 2003 | title=Překvapí nás výsledky referenda o EU? | url=https://www.stem.cz/prekvapi-nas-vysledky-referenda-o-eu/ | website=STEM | date=3 February 2003 | accessdate=13 March 2017 | language=cs}} | **47%** | 19% | 34% | |
| December 2002 | STEM | **48%** | 21% | 31% | ||||||
| November 2002 | STEM | **48%** | 19% | 33% | ||||||
| 17–24 October 2002 | title=Češi evropskými občany | url=http://cvvm.soc.cas.cz/media/com_form2content/documents/c1/a2862/f3/100131s_pm21114d.pdf | website=CVVM | accessdate=13 March 2017 | archive-url=https://web.archive.org/web/20170314153039/http://cvvm.soc.cas.cz/media/com_form2content/documents/c1/a2862/f3/100131s_pm21114d.pdf | archive-date=14 March 2017 | url-status=dead}} | **47%** | 18% | 23% |
| September 2002 | title=Jak vidíme vstup naší země do EU? | url=https://www.stem.cz/jak-vidime-vstup-nasi-zeme-do-eu/ | website=Stem.cz | date=19 December 2001 | accessdate=13 March 2017 | language=cs}} | **43%** | 20% | 37% | |
| 5–12 June 2002 | title=Integrace ČR do EU | url=http://cvvm.soc.cas.cz/media/com_form2content/documents/c1/a2814/f3/100083s_PM20702.pdf | website=CVVM | accessdate=13 March 2017 | archive-url=https://web.archive.org/web/20170314153511/http://cvvm.soc.cas.cz/media/com_form2content/documents/c1/a2814/f3/100083s_PM20702.pdf | archive-date=14 March 2017 | url-status=dead}} | **42%** | 17% | 41% |
| 22–29 April 2002 | CVVM | 40% | 19% | **41%** | ||||||
| March 2002 | title=Postoje ke vstupu do EU dlouhodobě stabilní | url=https://www.stem.cz/postoje-ke-vstupu-do-eu-dlouhodobe-stabilni/ | website=STEM | date=24 September 2002 | accessdate=13 March 2017 | language=cs}} | **46%** | 19% | 35% | |
| November 2001 | STEM | **47%** | 19% | 34% | ||||||
| 2–9 May 2001 | title=Podíl lidí, kteří by v referendu hlasovali proti našemu vstupu, vzrostl | url=https://www.stem.cz/podil-lidi-kteri-by-v-referendu-hlasovali-proti-nasemu-vstupu-vzrostl/ | website=STEM | date=13 August 2001 | accessdate=13 March 2017 | language=cs}} | **40%** | 22% | 38% | |
| 5–12 March 2001 | title=Zastánci vstupu ČR do EU by v referendu bezpečně vyhráli | url=https://www.stem.cz/zastanci-vstupu-cr-do-eu-by-v-referendu-bezpecne-vyhrali/ | website=Stem.cz | date=18 June 2001 | accessdate=13 March 2017 | language=cs}} | **45%** | 18% | 37% | |
| October 2000 | title=Kdo jsou odpůrci Evropské unie? | url=https://www.stem.cz/kdo-jsou-odpurci-evropske-unie/ | website=STEM | date=19 December 2000 | accessdate=13 March 2017 | language=cs}} | **48%** | 15% | 37% | |
| May 2000 | STEM | **42%** | 16% | **42%** | ||||||
| September 1999 | STEM | **44%** | 19% | 39% | ||||||
| April 1999 | STEM | **46%** | 14% | 40% | ||||||
| April 1997 | STEM | **50%** | 16% | 34% | ||||||
| August 1996 | STEM | **46%** | 13% | 41% |
Results

References
References
- (29 April 2003). "Poland and Czech Republic confirm referendum dates". Euractiv.
- "Občané o své účasti a hlasování v referendu o vstupu ČR do EU".
- "Účast v referendu o vstupu ČR do EU, hlasy pro a proti".
- (25 March 2003). "Postoje k referendu o EU".
- "Účast v referendu o vstupu České republiky do Evropské unie, hlasy pro a proti Chceme Euro?".
- (6 March 2003). "Referendum o EU".
- "Čtyři měsíce před referendem o připojení ČR k EU: Jak bychom dnes hlasovali.".
- (3 February 2003). "Překvapí nás výsledky referenda o EU?".
- "Češi evropskými občany".
- (19 December 2001). "Jak vidíme vstup naší země do EU?".
- "Integrace ČR do EU".
- "Aktuální postoje veřejnosti ke vstupu do EU".
- (24 September 2002). "Postoje ke vstupu do EU dlouhodobě stabilní".
- (13 August 2001). "Podíl lidí, kteří by v referendu hlasovali proti našemu vstupu, vzrostl".
- (18 June 2001). "Zastánci vstupu ČR do EU by v referendu bezpečně vyhráli".
- (19 December 2000). "Kdo jsou odpůrci Evropské unie?".
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