Dennis de Jong

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages) This biography of a living person needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately from the article and its talk page, especially if potentially libelous. Find sources: "Dennis de Jong" – news · newspapers · books · scholar · JSTOR (November 2021) (Learn how and when to remove this message) This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (February 2018) (Learn how and when to remove this message) You can help expand this article with text translated from the corresponding article in Dutch. (February 2018) Click [show] for important translation instructions. View a machine-translated version of the Dutch article. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Dutch Wikipedia article at [[:nl:Dennis de Jong]]; see its history for attribution. You may also add the template {{Translated|nl|Dennis de Jong}} to the talk page. For more guidance, see Wikipedia:Translation. (Learn how and when to remove this message)

Dennis de Jong MEP
Leader of the Socialist Party in the European Parliament
In office 7 July 2009 – 2 July 2019
Preceded by	Erik Meijer
Member of the European Parliament
In office 7 July 2009 – 2 July 2019
Constituency	Netherlands
Personal details
Born	Cornelis Dingenis de Jong (1955-05-22) 22 May 1955 (age 69) Delft, Netherlands
Political party	Socialist Party European United Left–Nordic Green Left
Spouse	Kees Vrijdag
Children	Four
Alma mater	Erasmus University Rotterdam
Website	[1]

Cornelis Dingenis "Dennis" de Jong (born 22 May 1955) is a Dutch politician of the Socialist Party. He was elected and reelected to the European Parliament in 2009 and 2014 as his party's top candidate, and he was the Leader of the Socialist Party in the European Parliament. As an MEP, he is part of the European United Left–Nordic Green Left. in 2019, he did not seek reelection.^[1]