Thijmen (Tim) Koopmans (11 August 1929 – 24 December 2015) was a Dutch judge and prominent academic.
[1] In 1953 he earned a Doctor of Law degree at the University of Amsterdam.
He returned to the Netherlands where he became a full professor at Leiden University, working in that position between 1965 and 1978.
[2] In 1978 Koopmans was made member of the Royal Netherlands Academy of Arts and Sciences.
[2] In 2009 he was part of the Commissie Davids, the commission wrote a report on the political support of the Netherlands for the Iraq War.