| Pieter Eijsen | |
| Office: | Vice President of the Supreme Court of the Netherlands |
| Term Start: | 1973 |
| Term End: | 1976 |
| Office2: | Councilor in the Supreme Court of the Netherlands |
| Term Start2: | 1961 |
| Term End2: | 1973 |
| Office3: | Advocate general in the Supreme Court of the Netherlands |
| Term Start3: | 1960 |
| Term End3: | 1961 |
| Birth Date: | 15 February 1906 |
| Birth Place: | Schimmert, Netherlands |
| Death Place: | The Hague, Netherlands |
| Nationality: | Dutch |
| Alma Mater: | University of Nijmegen |
Pieter Eijssen (Schimmert, 15 February 1906 – The Hague, 30 June 1988) was a Dutch lawyer and, among other things, Vice President of the Supreme Court of the Netherlands.
In 1924 he completed his education at the municipal gymnasium in Maastricht. He studied at the University of Nijmegen, where he obtained his doctorate in Dutch law cum laude on 30 May 1930. After entering military service at the age of 16 he successfully completed his master's degree in private law at the Faculty of Law in Batavia in 1931. From 1930 he worked in the Dutch East Indies. He held many positions including editor at the Department of Justice, secretary of the commission for constitutional reforms (from 1940), secretary of the Council of Heads of Department at the Department of Economic Affairs and the General Staff of the Department of War (1936–1940), secretary of the (private) Mortgage Association for mortgage companies, secretary of the Volksraad voting office, vice-chairman of the Indies Catholic Party and member of the Insurance Chamber (1946). Furthermore, in 1936, the Government expressed its special satisfaction to him for the commendable performance of his duties as Secretary of the Preparatory Commission for the Sugar Regulations.
He was Advocate general at the Supreme Court of the Netherlands[1] from 1960 until 1961. In this capacity, among other things, he argued against the use of preliminary references.[2] Eijsen was Councilor in the Supreme Court of the Netherlands from 1961 to 1973 and Vice President of the Supreme Court from 1973 to 1976.[3] [4]