Eelco van Kleffens

His Excellency
Eelco van Kleffens
His Excellency Eelco van Kleffens
	Van Kleffens in 1945
Permanent Representative of the ; Netherlands to the ECSC
	In office; 1 May 1958 – 10 December 1967
Preceded by	Unknown
Succeeded by	Unknown
Permanent Representative of the ; Netherlands to NATO and the OECD
	In office; 1 December 1956 – 1 May 1958
Preceded by	Unknown
Succeeded by	Unknown
President of the United ; Nations General Assembly
	In office; 1 January 1954 – 31 December 1954
Preceded by	Vijaya Lakshmi Pandit
Succeeded by	José Maza Fernández
Ambassador of the Netherlands ; to Portugal
	In office; 1 January 1950 – 1 May 1958
Preceded by	Unknown
Succeeded by	Unknown
Ambassador of the Netherlands ; to the United States
	In office; 1 July 1947 – 1 December 1956
Preceded by	Unknown
Succeeded by	Unknown
Permanent Representative of the ; Netherlands to the United Nations
	In office; 17 January 1946 – 1 December 1956
Preceded by	Office established
Succeeded by	Unknown
Minister for United Nations Affairs
	In office; 1 March 1946 – 1 July 1947
Prime Minister	Willem Schermerhorn (1946) ; Louis Beel (1946–1947)
Preceded by	Herman van Roijen
Succeeded by	Joseph Luns (1952)
Minister of Foreign Affairs
	In office; 10 August 1939 – 1 March 1946
Prime Minister	See list Dirk Jan de Geer ; (1939–1940) ; Pieter Sjoerds Gerbrandy ; (1940–1945) ; Willem Schermerhorn ; (1945–1946);
Preceded by	Jacob Adriaan Patijn
Succeeded by	Herman van Roijen
Personal details
Born	Eelco Nicolaas van Kleffens; 17 November 1894; Heerenveen, Netherlands
Died	17 June 1983 (aged 88); Almoçageme, Portugal
Spouse	Margaret Horstman (m. 1935)
Alma mater	Leiden University ; (Bachelor of Laws, Master of Laws) ; Erasmus University Rotterdam ; (Bachelor of Economics)
Occupation	Politician · Diplomat · Civil servant · Jurist

Eelco Nicolaas van Kleffens (17 November 1894 – 17 June 1983) was a Dutch politician and diplomat.

His Excellency Eelco van Kleffens
Van Kleffens in 1945

Permanent Representative of the Netherlands to the ECSC
In office 1 May 1958 – 10 December 1967
Preceded by	Unknown
Succeeded by	Unknown
Permanent Representative of the Netherlands to NATO and the OECD
In office 1 December 1956 – 1 May 1958
Preceded by	Unknown
Succeeded by	Unknown
President of the United Nations General Assembly
In office 1 January 1954 – 31 December 1954
Preceded by	Vijaya Lakshmi Pandit
Succeeded by	José Maza Fernández
Ambassador of the Netherlands to Portugal
In office 1 January 1950 – 1 May 1958
Preceded by	Unknown
Succeeded by	Unknown
Ambassador of the Netherlands to the United States
In office 1 July 1947 – 1 December 1956
Preceded by	Unknown
Succeeded by	Unknown
Permanent Representative of the Netherlands to the United Nations
In office 17 January 1946 – 1 December 1956
Preceded by	Office established
Succeeded by	Unknown
Minister for United Nations Affairs
In office 1 March 1946 – 1 July 1947
Prime Minister	Willem Schermerhorn (1946) Louis Beel (1946–1947)
Preceded by	Herman van Roijen
Succeeded by	Joseph Luns (1952)
Minister of Foreign Affairs
In office 10 August 1939 – 1 March 1946
Prime Minister	See list Dirk Jan de Geer (1939–1940) Pieter Sjoerds Gerbrandy (1940–1945) Willem Schermerhorn (1945–1946)
Preceded by	Jacob Adriaan Patijn
Succeeded by	Herman van Roijen

Personal details
Born	Eelco Nicolaas van Kleffens (1894-11-17)17 November 1894 Heerenveen, Netherlands
Died	17 June 1983(1983-06-17) (aged 88) Almoçageme, Portugal
Spouse	Margaret Horstman (m. 1935)
Alma mater	Leiden University (Bachelor of Laws, Master of Laws) Erasmus University Rotterdam (Bachelor of Economics)
Occupation	Politician · Diplomat · Civil servant · Jurist