Imagine how much time, money and discomfort it would save: a personalised treatment for each individual patient. Precision medicine like this is coming ever closer, thanks in part to Elise Dusseldorp’s algorithms. They retrieve a wealth of information from research data.

This book surveys a distinct human phenomenon in the history of the ancient Near East: individuals who were born males but, under various social and historical circumstances, their masculine identity was considered ambiguous. They bore specific titles and were engaged in cult or palace administration.…

When psychologists repeated a hundred studies in 2015, their results differed in two-thirds of the studies. ‘Research into research is not a luxury but a necessity,’ says Professor of Methodology and Statistics of Psychological Research Mark de Rooij. ‘My aim is to improve psychological research, to think…

List of Kloosterman professors

Linda Stuckrath Gottschalk defended her thesis on 6 April 2016.

Leiden experts research ways in which European legislation is converted into national legislation. Knowing how this process works can inspire policy-makers trying to achieve their aims while abiding to Europan legislation.

This study analyses the prehistory of a northeastern Siberian population, the Sakha, from both a molecular-genetic and a linguistic perspective.

This project receives funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme under grant agreement No 101054849 (PURANA).

This dissertation together with the artworks documented in it is the result of an investigation across multiple media over a seven-year period of the cultural, artistic and spiritual legacy of the late nineteenth- and early twentieth-century Lebensreform (Life Reform) movement.

The progression of EU law: Accommodating change and upholding values Coordinator: Dr. Moritz Jesse

The hinterland of important centres like Petra (Southern Jordan) can provide essential information that contribute to the understanding of their rise, expansion and decline.

The entrepreneurial spirit is highly present among the SBB students. The many (successful) spin-off companies from Leiden University brought by (former) SBB students are proof of this.

Applications for the 2025–2026 academic year are now closed. Registration for 2026–2027 will be open from 1 September to 30 September 2026. Further information about the application procedure for the coming year can be found below.

Organisations such as the EU are of enormous benefit to the member states, but the inhabitants of the member states are often unaware of this. Leiden researchers investigate whether international organisations such as the EU or ASEAN are able to influence global politics.

Research into research improves the academic system. CWTS studies and evaluates the academic system in various ways. One way is to provide information on the productivity and impact of academics by documenting how many publications they or their universities produce and how often these publications…

On 27 January 1900 thirteen female students gathered and established the Leesgezelschap van Vrouwelijke Studenten te Leiden (reading association for female students in Leiden).

The physical features of twelfth-century manuscripts from the Flemish abbey of Ter Duinen – such as script, page layout, and reading aids – show how their readers organized, interpreted, and transmitted knowledge.

In this publication the results of the analyses of the Roman harbour of Voorburg-Arentsburg (NL) are presented. This fully inclusive and integrated study of more than 1000 pages is published in two volumes. The publication is written in Dutch, but has got an extensive synthesis/summary in English.

Grassroots heritage initiatives and community engagement

The programs of Cultural Anthropology and Development Sociology, Educational Sciences, and Psychology offer the opportunity to take individual courses from the complete range of education. This 'contract teaching’ is intended for those interested in delving into a specific subject but do not wish to…

Leiden University archaeologists are reconstructing houses from the Stone Age, using only resources available during that period. This method offers surprising insights into the ingenuity of our distant ancestors, and challenges existing archaeological views.

The walking club is a ProParte sub-group.

In their vision trajectory, the Office for the Senior Civil Service (in Dutch: Bureau Algemene Bestuursdienst) communicated its plan to renew its vision on public leadership. Over the course of 2021, the Leiden Leadership Centre contributed as a scientific partner to the substantiation of this visio…

To ensure that the growing global flows of labour migrants are guided correctly, we need knowledge. Why do people leave home, why do they go to specific countries, and how can that choice be influenced? And what are the consequences of their leaving for the people who stay?

What will it be like to study at Leiden University in 2075?

You can register for semester 1 courses (academic year 2026/2027) from the beginning of June 2026.

University building Campus Spui The Hague

Alumni event, Lustrum

Which consumer groups post the greatest cost to public health and the planet through their food choices, and how can we use this fine-scale information to accelerate a sustainable dietary transition?

Also including: Wateringen 4 & Acquiring a taste.

The Hague is the international city of peace and justice, home to many international organisations, embassies and multinational corporations but also a fun student city filled with music, cafes, museums and the most popular beach in the Netherlands!

When you have finished your dissertation, it is time to prepare for the defence procedure.

This project aims to excavate and date the setting of the east gate of the Roman fortress of Udhruḥ. This will be compared with other Diocletianic military installations from the region. We also hope to retrieve another gate inscription which can shed light on the function and political embedding of…

The research in my group addresses a range of topics related to quantum many-body physics.

Papyrology+, founded in 2014, is a collaboration of Leiden scholars studying (Abnormal) Hieratic, Demotic, Aramaic, Greek, Latin, Coptic, and Arabic papyri from a socio-historical, economic and linguistic perspective. Papyrology+ aims to explore new opportunities and directions in the study of ancient…

The master's specialisation in Visual Ethnography emphasises a strongly hands-on, empirical approach, which requires students to play an active role in mastering the audiovisual toolbox.

The Keuzegids is an independent consumer guide that compares all (master’s) programmes in the Netherlands. Students evaluate the programmes based on content, atmosphere, lecturers, assessment, and career preparation.

Inter-Section is a peer-reviewed, open-access journal focusing on contributions from young archaeological researchers at Leiden University. The journal aims to stimulate both undergraduate and graduate students to take an additional step in their academic development by publishing their individual research.…

Het kabinet wil noodrecht toepassen in het asielbeleid. Minister Faber meent dat dit juridisch ook is getoetst. Verschillende juristen, waaronder Mark Klaassen, universitair docent Migratierecht en Wim Voermans, hoogleraar Staatsrecht, betwisten dat het noodrecht in de huidige situatie een geschikt…

Cut marks on the bones of bears show that people in North-West Europe used bearskins to keep warm 300,000 years ago.

Members of our research team give different types of presentations and lectures.

A practical checklist with legal, technical and ethical points of view will from now on guide the data scientists when working in Artificial Intelligence: the AI Impact Assessment (AIIA). It has been developed by ECP (Platform of the Information Society) and nine other partners, among them the Leiden…

Voorafgaand aan de begrotingsonderhandelingen riep Marjolein Faber, Minister van Asiel en Migratie, officieel een asielcrisis uit. Is daarmee mogelijke wetgeving op komst? En gaat Brussel daarmee akkoord? Mark Klaassen, universitair docent bij het Europa Instituut, hierover aan het woord in Metro.

Stories of resistance in the Second World War are widely covered in Dutch historiography: Hannie Schaft, Erik Hazelhoff Roelfzema, and Professor Cleveringa are some of the best known. But these accounts largely focus on the Dutch domestic perspective. On the other side of the world, a complex colonial…

December marks the 15th anniversary of the Dual PhD Centre (DPC). Director Johannes Tromp and associate professor Mark Dechesne look back and ahead. Dechesne: ‘The DPC forms a 'community of knowledge' in which science and society are connected.’

Our research regularly receives attention in the (Dutch) popular media. Here is an overview.

Mathematics can help predict thrombosis. Mathematician Mark Alber has developed models that even aid in suggesting treatments. In the Kloosterman lecture on 27 June, he will explain how this works.