Hannes Tretter (5 July 1951 – 17 March 2025) was an Austrian lawyer and human rights expert. He was Professor of Human Rights at the

University of Vienna The University of Vienna (, ) is a public university, public research university in Vienna, Austria. Founded by Rudolf IV, Duke of Austria, Duke Rudolph IV in 1365, it is the oldest university in the German-speaking world and among the largest ...

and was Director of the

Ludwig Boltzmann Institut für Menschenrechte The Ludwig Boltzmann Institute of Human Rights (BIM; German: Ludwig Boltzmann Institut für Menschenrechte) is a Vienna-based research institute affiliated with the Austrian Ludwig Boltzmann Gesellschaft, that specializes in the area of human right ...

, which he cofounded with Felix Ermacora and Manfred Nowak in 1992. He was also an expert with the

Organization for Security and Co-operation in Europe The Organization for Security and Co-operation in Europe (OSCE) is a regional security-oriented intergovernmental organization comprising member states in Europe, North America, and Asia. Its mandate includes issues such as arms control, the p ...

, a board member of the Austrian League for Human Rights and chaired the Steering Committee of the Austrian EUMC Focal Point. Tretter earned his doctorate in law in 1975 and was employed at the University of Vienna from 1978 to 2025. He died on 17 March 2025, at the age of 73.Wir trauern um Hannes Tretter.
humanrights.at, 24 March 2025 (in German). Retrieved 24 March 2025.

References

1951 births 2025 deaths Austrian human rights activists 20th-century Austrian lawyers University of Vienna alumni Academic staff of the University of Vienna 21st-century Austrian lawyers {{Austria-bio-stub