Our university is part of Una Europa: an alliance of 11 leading European research universities.

The integrity and reliability of academic research are of fundamental importance to the University. All parties, both within the University and outside, must be able to have confidence that our research is conducted in a scrupulous, fair, verifiable, impartial and independent manner. To make sure you…

When we read a text, we think we know who wrote it, but in the early modern period, manuscript production was often a collaborative or ‘socialised’ enterprise involving secretaries and scribes who physically wrote what the author dictated.

How are new drugs developed? This question is central to the Minor Modern Drug Discovery (MDD), which covers the entire trajectory from disease to drug molecule and vice versa. The various research groups involved offer a complementary and interdisciplinary perspective by connecting the diverse subjects…

The ultimate goal of cosmologists is to find a cosmological model able to explain the current observational data.

This PhD project investigates how Russian state-aligned media frame the war in Ukraine for international audiences and how these frames travel across borders, being adopted, adapted, or challenged by foreign media and political actors.

On the 13th of February, Matthew Sung successfully defended a doctoral thesis. Leiden University Centre for Linguistics congratulates Matthew on this achievement!

On 12 April 2022 Alok Oak successfully defended a doctoral thesis and graduated.

L1-oral language education is widely regarded as essential for developing communicative competence and critical thinking. However, as a research domain it remains relatively underexplored. The aim of this study was to identify effective elements and challenges within oral language education and to contribute…

If spending three years at university and following the entire Dutch Studies programme is not an option for you, we offer an alternative. We have created a challenging one-year programme in which you will learn to speak Dutch and delve into Dutch culture. This programme is less comprehensive, and allows…

Knowledge that helps protect the Netherlands and Europe from military and cyber threats.

Helping people, groups and policymakers navigate the social transitions of our time.

Making a Real-World Impact on Campus

This project aims to produce empirical data on migration processes in non-Western locales, and to contribute to migration studies theory-building with new insights and through comparative perspective.

Promotores: Prof.dr. E.F. van Dishoeck, Prof.dr. C.P. Dullemond

The thesis is about how auxin and AGC kinases regulate male fertility. The main AGC kinases studied in this thesis is PDK1, PDK2 and AGC1.5, AGC1.7.

We know that armed conflict breeds conflict. We also know the political, economic and demographic factors that inform this repetition of conflict. But we do not understand why accumulated conflict risk factors sometimes do and other times do not pay out in more violence. What if we go beyond macro structural…

On February 28th, Promise Dodzi Kpoglu succesfully defended his doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Dodzi on this great result.

What roles does music play within our society? How does current society influence music? And vice versa: how does music influence, for instance, politics, media and technology? The minor Music Studies offers you a different way of thinking about music. Music is more than just a form of art, more than…

This dissertation consists of two parts, each of which considers a different research area related to random interval maps. In the first part we are interested in random interval maps that are critically intermittent.

Lecture, LUCL Colloquium

Understand how the economy works and shapes today’s challenges

In this dissertation, the synthesis and characterization of a series of iron complexes based on different ligand platforms are described.

On the 19th of February, Mariana Martins successfully defended a doctoral thesis. Leiden University Centre for Linguistics congratulates Mariana on this achievement!

All the data stored and processed by our computers is encoded as sequences of zeros and ones, called bits. Quantum computers offer an alternative to this traditional way of encoding and manipulating information.

These awards honour researchers who turn scientific insight into real-world impact. From master’s students to postdocs, they highlight exceptional work in life sciences, health sciences, biotech, or environmental health sciences with data science at the core. Meet the 2025 winners.

The Young Academy Leiden (YAL) organises listening sessions across faculties. The aim of these listening sessions is to learn more about the wants and needs of (post-PhD) Early Career Researchers at Leiden University.

This thesis examines strategies to address the global threat of antimicrobial resistance (AMR). Antimicrobial resistance poses an increasing global health risk, highlighting the need for new treatments against Gram-negative pathogens.

In September 2025, Leiden University submitted its self-evaluation for the mid-term review of the Social and Behavioural Sciences Sector Plan. This self-evaluation provides an overview of the progress made within Leiden since the start of the SSH Sector Plans and reflects on how FSW and FGGA contribute…

Are you still unsure which master's programme suits you best? Why not dive deeper into the programmes, experience lectures and ask all your questions to teachers and current students? Try one of our extra information activities.

Amsterdam painter Dirk Valkenburg (1675–1721) produced some of the earliest depictions of Indigenous and enslaved people on Surinamese sugar plantations – idealized images that conceal the violence of colonialism.

This book addresses the definition of history and how people are influenced by it.

In this article, Barrie Sander, Assistant Professor of International Law, adopts a narrative theoretical lens to examine how security is constructed, contested, and narrated within three EU regulatory frameworks at the intersection of climate and AI governance - the Critical Raw Materials Act, the AI…

This is an Erasmus+ International Credit Mobility project of Leiden University College with Bayero University Kano and Nigerian Army University Biu in Nigeria.

This is an Erasmus+ International Credit Mobility project of Leiden University’s Faculty of Humanities with Anton de Kom University in Suriname.

As a PhD candidate you can declare costs that are related to the graduation formalities.

At the LAK, you can participate in a wide range of creative courses, supervised by passionate professionals. From drama and presentation to dance, visual arts, singing and music, photography, and writing – there's always something for you. You'll not only develop your talents but also meet like-minded…

The LLMC collaborates regularly with partners from society, business, and science.

Arts and leisure, Arts and leisure

CML researcher Sterre Ter Haar has made the front page of The Washington Post with her research into declining nutritional values. ‘We hope this is a piece of the puzzle that says: perhaps we should take this seriously and find out what is happening to our food.’

Lecture, Sociolinguistics & Discourse Studies Series

How do different emotional expressions influence the behavior of other people in negotiations?

Promotor: Prof.dr. F.S. de Boer, Co-promotor: D. Clarke

This thesis deals with properties of Jacobians of genus two curves that cover elliptic curves.