| Honorific-Prefix: | His Excellency |
| Herman Tjeenk Willink | |
| Office: | Vice-President of the Council of State |
| Term Start: | 1 July 1997 |
| Term End: | 1 February 2012 |
| Predecessor: | Willem Scholten |
| Successor: | Piet Hein Donner |
| Office1: | President of the Senate |
| Term Start1: | 11 June 1991 |
| Term End1: | 11 March 1997 |
| Predecessor1: | Piet Steenkamp |
| Successor1: | Frits Korthals Altes |
| Office2: | Member of the Senate |
| Term Start2: | 23 June 1987 |
| Term End2: | 11 March 1997 |
| Birth Name: | Herman Diederik Tjeenk Willink |
| Birth Date: | 23 January 1942 |
| Birth Place: | Amsterdam, Netherlands |
| Nationality: | Dutch |
| Party: | Labour Party (since 1966) |
| Residence: | The Hague, Netherlands |
| Alma Mater: | Leiden University (LL.B., LL.M) |
| Occupation: | Politician · Civil servant · Jurist · Judge · Professor |
Herman Diederik Tjeenk Willink (born 23 January 1942) is a retired Dutch politician of the Labour Party (PvdA) and jurist. He was granted the honorary title of Minister of State on 21 December 2012.
Tjeenk Willink served as a Member of the Senate from 23 June 1987 until 11 March 1997 and served as President of the Senate from 11 June 1991 until 11 March 1997. He resigned both positions when he was selected as the Vice-President of the Council of State taking office on 1 July 1997 and therefore the most important advisor to Queen Beatrix during that time.
| Honours | |||||
| Ribbon bar | Honour | Country | Date | Comment | |
|---|---|---|---|---|---|
| Knight Grand Cross of the Order of Orange-Nassau | Netherlands | 1 February 2012 | Elevated from Knight (15 March 1997) | ||
| Honorary Medal for Initiative and Ingenuity of the Order of the House of Orange | Netherlands | 9 December 2014 | [1] | ||
| Honorific Titles | |||||
| Ribbon bar | Honour | Country | Date | Comment | |
| Minister of State | Netherlands | 21 December 2012 | Style of Excellency[2] | ||
| Honorary degrees | |||||
| University | Field | Country | Date | Comment | |
|---|---|---|---|---|---|
| Erasmus University Rotterdam | Social science | Netherlands | 1997 | ||
| University of Amsterdam | Political science | Netherlands | 2007 | ||