Klaas George de Vries (born 28 April 1943) is a retired Dutch politician of the Labour Party (PvdA) and jurist.^[1]

Klaas de Vries
Klaas de Vries in 2008
Member of the Senate
In office 12 June 2007 – 9 June 2015
Parliamentary group	Labour Party
Minister of the Interior and Kingdom Relations
In office 24 March 2000 – 22 July 2002
Prime Minister	Wim Kok
Preceded by	Roger van Boxtel (Ad interim)
Succeeded by	Johan Remkes
Minister of Agriculture, Nature and Fisheries
In office 7 June 1999 – 9 June 1999 Ad interim
Prime Minister	Wim Kok
Preceded by	Haijo Apotheker
Succeeded by	Laurens Jan Brinkhorst
Minister of Social Affairs and Employment
In office 3 August 1998 – 24 March 2000
Prime Minister	Wim Kok
Preceded by	Ad Melkert
Succeeded by	Willem Vermeend
Chairman of the Social and Economic Council
In office 1 January 1996 – 3 August 1998
Preceded by	Theo Quené
Succeeded by	Herman Wijffels
Member of the House of Representatives
In office 23 May 2002 – 30 November 2006
In office 28 May 1973 – 1 September 1988
Parliamentary group	Labour Party
Personal details
Born	Klaas George de Vries (1943-04-28) 28 April 1943 (age 80) Hoensbroek, Netherlands
Political party	Labour Party (from 1968)
Spouse	Nanda Stapper ​ (m. 1966)​
Children	3 sons
Residence(s)	Pijnacker, Netherlands
Alma mater	Hamline University (Bachelor of Arts) Utrecht University (Bachelor of Laws, Master of Laws)
Occupation	Politician · Civil servant · Jurist · Researcher · Nonprofit director · Sport administrator · Lobbyist · Activist · Author · Professor
Website	(in Dutch) Klaasdevries.nl

De Vries attended a Gymnasium in Heerlen from June 1955 until July 1961 and applied at the Hamline University in Saint Paul, Minnesota in July 1961 majoring in Public Administration and obtaining a Bachelor of Public Administration degree in August 1962 before transferring to the Utrecht University in September 1962 majoring in Law and obtaining a Bachelor of Laws degree in June 1964 and graduating with a Master of Laws degree in July 1968. De Vries worked as a civil servant for the department for Administrative Affairs of the Ministry of Justice from August 1968 until April 1971 and as a researcher at the Erasmus University Rotterdam from April 1971 until May 1973. De Vries served on the Municipal Council of Delft from March 1970 until April 1974.

De Vries became a Member of the House of Representatives after Bram Stemerdink was appointed as State Secretary for Defence in the Cabinet Den Uyl after the election of 1972, taking office on taking office on 28 May 1973 serving as a frontbencher and spokesperson for Defence and chairing the parliamentary inquiry commission on construction grants. In August 1988 De Vries was nominated as Executive-Director of the Association of Municipalities, he resigned as a Member of the House of Representatives the same day he was installed as Executive-Director on 1 September 1988. In December 1995 De Vries was nominated as Chairman of the Social and Economic Council, he resigned as Executive-Director the same day he was installed as Chairman, taking office on 1 January 1996. After the election of 1998 De Vries was appointed as Minister of Social Affairs and Employment in the Cabinet Kok II, taking office on 3 August 1998. De Vries served as acting Minister of Agriculture, Nature and Fisheries from 7 June 1999 until 9 June 1999 following the resignation of Haijo Apotheker. De Vries was appointed as Minister of the Interior and Kingdom Relations following the resignation of Bram Peper, taking office on 24 March 2000. After the election of 2002 De Vries returned as a Member of the House of Representatives, taking office on 23 May 2002. The Cabinet Kok II was replaced by the Cabinet Balkenende I following the cabinet formation of 2002 on 22 July 2002 serving as a frontbencher and spokesperson for Integration. After the Leader of the Labour Party and Parliamentary leader of the Labour Party in the House of Representatives Ad Melkert announced that he was stepping down as Leader and Parliamentary leader in the House of Representatives following the defeat in the election, De Vries announced his candidacy to succeed him. De Vries lost the leadership election to former State Secretary for Finance Wouter Bos on 12 November 2002. In July 2006 De Vries announced that he wouldn't stand for the election of 2006 and continued to serve until the end of the parliamentary term on 30 November 2006.^[2]

De Vries remained in active in national politics, he was elected as a Member of the Senate after the Senate election of 2007, taking office on 12 June 2007 serving as a frontbencher and spokesperson for Foreign Affairs and chairing several parliamentary committees. De Vries also became active in the public sector and occupied numerous seats as a nonprofit director on several boards of directors and supervisory boards (Humanist Association, Parliamentary Documentation Center, Transnational Institute, International Fellowship of Reconciliation, Atlantic Association, Institute for Multiparty Democracy, ProDemos and the International Institute of Social History) and served on several state commissions and councils on behalf of the government (Council for Public Administration, Cadastre Agency, Advisory Council for Spatial Planning and Public Pension Funds APB) and as an advocate, lobbyist and activist for the Anti-war movement, Humanitarianism and Democracy. De Vries also worked as a sport administrator for the Olympic Committee*Dutch Sports Federation (NOC*NSF) and also served as a distinguished professor of Governmental Studies, Public administration and Political history at the Radboud University Nijmegen from 1 June 2009 until 10 October 2012. In November 2014 De Vries announced his retirement from national politics and that he wouldn't stand for the Senate election of 2015 and continued to serve until the end of the parliamentary term on 9 June 2015.

De Vries is known for his abilities as a debater and manager. De Vries continues to comment on political affairs as of 2024.^[3]