Are you considering starting a master’s programme in Psychology at Leiden University and are you planning on pursuing a career outside of the Netherlands? If so, then before your start your studies, make sure to check if your preferred country has special requirements to work as a psychologist, in…

Are you considering starting a master’s programme in Psychology at Leiden University and are you planning on pursuing a career outside of the Netherlands? If so, then before your start your studies, make sure to check if your preferred country has special requirements to work as a psychologist, in…

Are you considering starting a master’s programme in Psychology at Leiden University and are you planning on pursuing a career outside of the Netherlands? If so, then before your start your studies, make sure to check if your preferred country has special requirements to work as a psychologist, in…

Are you considering starting a master’s programme in Psychology at Leiden University and are you planning on pursuing a career outside of the Netherlands? If so, then before your start your studies, make sure to check if your preferred country has special requirements to work as a psychologist, in…

How can international investment law and arbitration take account of the public interest in, and more broadly, the public dimension of, the relations between foreign investors and host States ?

Rather than one key and one strong lock, biology often uses tens or hundreds of weaker links to bind parts together, such as cells membranes. This allows for selectivity and also reversibility: the binding can also be undone. Researchers first caught this phenomenon using spheres or colloids, and published…

Are you considering starting a master’s programme in Psychology at Leiden University and are you planning on pursuing a career in health care outside of the Netherlands? If so, then before your start your studies, make sure to check if your preferred country has special requirements to work as a psychologist,…

By choosing Leiden University, you’ll be choosing to broaden your personal and academic horizons. You’ll be in excellent company too because you’ll be part of an inspiring community of students, lecturers and professors from all over the world. Founded in 1575, ours is the oldest university in the N…

In this chapter of the Elgar Encyclopedia of International Relations, Carraro explores how expertise is defined and contested in International Relations.

In 2013, Sylvestre Bonnet received an ERC Starting Grant to kill cancer with molecules that can be activated by light. Two postdocs and three PhD students later, the end approaches of his so far successful project.

Using the League of Nations’ responses to early crises as an explorative historical case study, Political Scientist Gisela Hirschmann investigates how international organisations perceive and respond to existential threats.

We would all like to live in a world in which individuals feel safe, conflicts are resolved peacefully and the interests of future generations are taken into consideration. At Leiden University legal scholars investigate to what extent public international law meets the needs of a globalised society.…

The Private International Law Department provides academic education and performs research in the field of private international law.

How should the international community of states respond to genocide, war crimes and crimes against humanity? How can the perpetrators of international crimes be brought to justice? How can international crimes be prevented? How can the international community of states promote international consensus…

This article offers an inaugural assessment of how silences implicate international law-making in cyberspace through descriptive and normative lenses.

The Service Centre International Staff provides advice and different services to all international employees and guest researchers pursuing their academic careers in Leiden.

Understanding the complexities of world affairs requires an ability to think critically and to draw insights from a variety of perspectives, sources, and analytic frames. Leiden University’s Master of Arts in International Relations addresses these needs through distinctive humanities-based training…

Ending the United Kingdom’s (UK) forty-seven year European Union (EU) membership has fundamentally transformed its relationship with the EU. After years of tumultuous negotiations, international law now once again governs the UK’s relationship with the EU. This has resulted in a sophisticated body of…

This edited volume explores how artificial intelligence (AI) is transforming international conflict in cyberspace.

Study the MSc in Political Science: International Organisation at Leiden University in The Hague. Learn about international institutions, governance, and global policy.

If you are from abroad and you want to work at Leiden University, there is quite a lot to arrange.

Four famous alumni introduced their favourite films at Leiden International Film Festival.

Explore the MSc in International Politics at Leiden University: a one‑year programme focused on international conflict, crisis management, diplomacy and global cooperation.

2026

The International Arbitration Training Course, offered by Leiden Law School in cooperation with the Permanent Court of Arbitration, focuses on the theory and practice of international arbitration as a distinct field of the law and field of legal practice.

Loopholes in international tax legislation contribute to the misuse of tax rules by multinationals. Leiden University legal experts investigate how the complex national and international tax rules can be made more consistent in order to create a better tax system.

In this article, the authors explore how international criminal law is moving into a ‘post-critical’ phase and examine its potential for emancipatory reform.

Globalisation is shaping the world in which we live. In the BA in International Studies, you have the opportunity to study one of eight world regions within the context of global interactions. At the same time, you will learn a key language of your chosen region and acquire skills that will prove to…

Light obscuration (LO) is the current standard technique for subvisible particle analysis in the quality control of parenterally administered drugs, including therapeutic proteins.

Promotores: Prof.dr. C.U. Keller, Prof.dr. H.C. Gerritsen

Surface acoustic waves (SAWs) are mechanical waves that travel along the surface of a material and find many applications in modern technologies due to the ease of excitation on piezoelectric substrates via interdigital transducers (IDTs).

In astronomy, the interpration of observations and measurements plays a crucial role: we rely purely and fundamentally on the information that reaches us as observers. And 80% of all matter in the universe is undetectable directly.

How did we come into existence? Are we alone? These questions have driven humans for centuries.

The International Labour Organisation (ILO) was established in 1919 based on the premise that social justice is a condition for lasting peace. On February 2019 the ILO celebrated its 100th anniversary with an international symposium to consider the future of the ILO.

The Dutch Minister for Infrastructure and Watermanagement Cora van Nieuwenhuizen has offered the first copy of the book ‘Behind and Beyond the Chicago Convention: The Evolution of Aerial Sovereignty’ to the Secretary-General of the International Civil Aviation Organization (ICAO).

Study information, Online Experience

If you wish to come to the Netherlands, there are certain immigration procedures you need to follow. Leiden University can apply for a visa and residence permit on your behalf.

The relationship between States and foreign corporations are regulated by international economic law and international investment law in particular. Any disputes between States and foreign corporations must therefore also be solved by reference to this body of public international law, for example when…

At Leiden University College (LUC), engagement with international societal partners occurs through research, education, and internships, fostering mutually beneficial collaborations with NGOs, public service institutions, and international counterparts.

A team of researchers at Leiden University is collecting information about the methods used by researchers in the field of public international law. The research team consists of Cecily Rose, Misha Plagis, Johanna Trittenbach, and Nicholas McGuire. The goal of this research project is to understand…