Herman Tjeenk Willink
 Herman Diederik Tjeenk Willink (born January 23 1942) is a retired Dutch politician of the Labour Party (PvdA). He was the Vice President of the Council of State from July 1 1997 until February 1 2012.He previously served as a Member of the Senate from June 23 1987 and became the President of the Senate on June 11 1991.