Tjerk Westerterp

Theodorus Engelbertus "Tjerk" Westerterp (born 2 December 1930) is a Dutch politician. He was a diplomat of the defunct Catholic People's Party (KVP) now merged into the Christian Democratic Appeal (CDA) party. He is also a businessman.

Tjerk Westerterp
Tjerk Westerterp in 1974
Minister of Transport and Water Management
In office 11 May 1973 – 19 December 1977
Prime Minister	Joop den Uyl
Preceded by	Bé Udink
Succeeded by	Dany Tuijnman
State Secretary for Foreign Affairs
In office 17 August 1971 – 7 March 1973
Prime Minister	Barend Biesheuvel
Preceded by	Hans de Koster
Succeeded by	Laurens Jan Brinkhorst Pieter Kooijmans
Member of the European Parliament
In office 8 May 1967 – 17 Augustus 1971
Parliamentary group	Christian Democratic Group
Constituency	Netherlands
Member of the House of Representatives
In office 22 December 1977 – 15 February 1978
In office 8 June 1977 – 8 September 1977
In office 7 December 1972 – 11 May 1973
In office 31 July 1963 – 17 August 1971
Parliamentary group	Catholic People's Party
Personal details
Born	Theodorus Engelbertus Westerterp (1930-12-02) 2 December 1930 Rotterdam, Netherlands
Nationality	Dutch
Political party	Christian Democratic Appeal (from 2002)
Other political affiliations	Livable Netherlands (2001–2002) Christian Democratic Appeal (1980–2001) Catholic People's Party (until 1980)
Spouse(s)	Ine van Lier ​ (m. 1960)​
Children	4 children
Residence	Ulvenhout, Netherlands
Alma mater	Radboud University Nijmegen (Bachelor of Social Science, Bachelor of Arts, Master of Social Science, Master of Arts)
Occupation	Politician · Diplomat · Civil servant · Businessman · Corporate director · Nonprofit director · Journalist · Political consultant · Lobbyist · Author

Westerterp became a Member of the House of Representatives after Gerard Veldkamp was appointed as Minister of Social Affairs and Health.

After the election of 1971 Westerterp was appointed as State Secretary for Foreign Affairs, taking office on 17 August 1971.