Herman Tjeenk Willink

{{Short description|Dutch politician (born 1942)}}

{{Use dmy dates|date=February 2019}}

{{Infobox officeholder

| honorific-prefix = His Excellency

| name = Herman Tjeenk Willink

| image = Opdracht Financieel Dagblad , heer Tjeenk Willink , close en kop - NL-HaNA Anefo 933-3139 WM556 (cropped).jpg

| caption = Tjeenk Willink in 1985

| office = Vice-President of the Council of State

| term_start = 1 July 1997

| term_end = 1 February 2012

| monarch = Beatrix

| 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 = {{Birth date and age|1942|01|23|df=y}}

| birth_place = Amsterdam, Netherlands

| death_date =

| death_place =

| 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

| signature =

| website =

}}

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.