Help us spot and clean up the plastic in the canals of Leiden! Leiden University is calling on the good folk of Leiden to help our researchers study the plastic in the city’s canals. And if you’d like our canals to be plastic-free, why not donate towards a fleet of canoes to clean them up?

This week, Leiden University bade farewell to Henri Lenferink, who is retiring after 20 years as mayor of Leiden.

The Municipality of The Hague, Leiden University and CBRE Investment Management (CBRE IM) will together try to realise a University building in the former Hudson’s Bay premises at Grote Marktstraat 48-50/Spui 3. This will facilitate the growth of Campus The Hague. A cooperation agreement was signed…

Willem te Beest, Vice-Chairman of the Executive Board, is retiring on 1 May. His farewell was celebrated in style in the Pieterskerk on 7 April. And, to his surprise, the celebrations included a royal decoration.

This is a recording of the book launch of Susanna Lindberg's

On the occasion of Bart Besamusca's retirement as professor of Middle Dutch text culture in international perspective at Utrecht University on 25 January 2023, the digital exhibition 'The surprising Middle Ages' was created by medievalists from the Utrecht University Centre for Medieval Studies Over…

On the occasion of the retirement of Robert Ross, Professor in African History at Leiden University, his successor and former student Jan-Bart Gewald wrote a valedictory note.

On 30 November 2021 the book 'Audiovisual and Digital Ethnography: A Practical and Theoretical Guide' was published by Routledge. The book resulted from eight anthropologists of the Institute of Cultural Anthropology and Development Sociology joining forces: Cristina Grasseni, Bart Barendregt, Erik…

The first eLaw Conference held at Leiden University was a success and fostered timely discussions on the legal challenges and opportunities presented by digital technologies.

Terrorism, crisis, violence, intelligence, diplomacy, war and peace are topics that are broadly covered in ISGA's research activities. Regularly, ISGA researchers appear in international media to discuss their research expertise. This item offers an overview of non-Dutch and non-English articles and…

The Hofstad group is known mainly because of Mohammed B., the murderer of Theo van Gogh. PhD candidate Bart Schuurman examined this Dutch jihadist group based on interviews and confidential police files. How and why did the group come about? What drove some of the group members to commit terrorist…

With a call for dialogue and collaboration, vice dean Bart de Smit kicked off the new academic year for the Faculty of Science on Tuesday 3 September. Theoretical physicist Carlo Beenakker outlined the possibilities of quantum as a disruptive technology.

Bart Barendregt, Ratna Saptari, and Annemarie Samuels co-organised a two-day workshop on

During the New Year’s reception of the Faculty of Social and Behavioural Sciences (FSW) on 12 January 2026, Sarah de Rijcke said farewell as our dean. She will become the new Rector Magnificus of Leiden University. It was not the only change of leadership announced that afternoon.

Doing a PhD on the side? External PhD candidates, like Joost Van der Helm, just get on and ‘do it’. Besides his hectic job as a justice at the Court of Appeal in The Hague, Van der Helm managed to still find time to write a PhD dissertation.

What will the future be like? This is something that every student wonders about as graduation approaches. What will I do? How can I find a good job? And even more importantly: How do I land that job once I have found it? If a student has a disability, additional questions may also arise. A symposium…

The We Are Science Week, inspiring lectures, and enjoyable gatherings. This year, we frequently came together to inspire and connect with one another. Our biggest event took place at the start of the academic year in September: the official opening of our new Gorlaeus building.

Can dynamic testing provide us with insight in children’s potential for learning?

The research question is that unconscious perseverative cognition (UPC) is responsible for a considerable part of cardiovascular (CV) activity that occurs even in the absence of threats and other stressors that one may encounter in one’s daily life.

For a long time, the painful history of colonial slavery received too little attention. People whose ancestors lived in slavery are now asking critical questions about how we should address that past. Leiden University researchers study the history of colonialism and slavery and their long-term impact…

SAILS likes to occasionally organise workshops about topics that relate to our programme. On this page you can find more information about previous workshops.

The center studies the many ways in which issues of law and justice are dealt with in art and literature with a focus on liminal issues and cases. These are issues and cases where law comes to the limits of what it is capable of dealing with and art and literature explore the implications of what is…

What is the size and composition of the Dutch urban mine? How will the urban mine develop over time, and how can it be used as a source of materials as part of a circular economy?

Leiden University will be recording a brand-new series of podcasts in 2019: Science Shots. Our top scientists will talk about their research in less than 15 minutes. Tip: something to enjoy on the train journey between Leiden and The Hague, our two University cities!

In autoimmune diseases such as rheumatism and diabetes the immune system attacks autologous proteins. Leiden researchers are trying to discover how this comes about.

Didactics

Leiden has much to celebrate: first, 450 years of the Relief of Leiden and then 450 years of Leiden University. And that is no coincidence.

Using artificial intelligence is more complicated for the government than for companies. Bram Klievink, Professor of Public Administration, aims to identify the problems and find solutions.

The d12n Research Cluster provides a space for inquiry and intervention into the ongoing digit(al)isation of culture, society, and scholarship. The research cluster aims to link CADS Institute researchers to each other as well as to experts and praticioners from around the world as we combine thinking…

With knowledge of heritage we understand identity and appreciate diversity.

Study information

On Thursday 12 June 2013 , Radosław Sikorski, Minister of Foreign Affairs of Poland, gave the first Europa lecture entitled: 'Poland, the Netherlands and the European Union - Common Challenges'.

Leiden University's 2017 annual report has now been published. This year for the first time the University has also published a separate sustainability report. Leiden University is the first university to produce a separate report on the progress of its sustainability policies.

On 14 September the construction of the Spui university building officially began.

Mathematician Hester Bijl will be appointed Vice-Rector Magnificus and member of the Executive Board of Leiden University with effect from 1 November 2016. She succeeds Simone Buitendijk.

The more than 370 sensors that have been hung up in Leiden University buildings to count the people present will not be switched on again. The equipment will eventually be removed from the buildings.

Leiden University no longer wishes to collaborate with fossil fuel partners that are not demonstrably committed to achieving the Paris Agreement targets. Exceptions will be made only if a collaboration demonstrably contributes to the energy transition. This proposal by the Executive Board was discussed…

For the first time, Leiden University has made it to the top 10 of the UI Green Metric, a global sustainability ranking for universities. Of the 780 participating universities, Leiden has taken seventh place.

Timo Kos has been appointed Vice President of Leiden University’s Executive Board and will take up the role on 1 March 2025. He succeeds Martijn Ridderbos, who will join the board of the Netherlands Authority for Consumers and Markets (ACM) on 1 January 2025.

Dutch doctors hold social media platform Snapchat responsible for the illegal sale of vapes, and are threatening legal action. Bart Schermer, Professor of Law and Digital Technology, spoke to RTL news: 'Snapchat is not liable for the content of its users'.

As of March 16 two PhD candidates have started their work on the project Empirical Legal Studies as part of the sector plan for Law.

On 21 April 2022, Cleveringa Professor Jan Grabowski visited Leiden. The theme of his visit was the role of law and historiography in shaping collective memories.

The Dutch police force has been deliberately storing personal data relating to millions of Dutch people for many years now. In doing so, the institution has been knowingly breaking the law. Bart Schermer, Professor of Law and Digital Technology expressed his concerns on Follow the Money – a platform…

A new document casts doubt on the Dutch Public Prosecution Service’s role in the large-scale Sky ECC encryption bust, previously attributed to France. Bart Schermer, Professor of Law and Digital Technology, commented in ‘de Volkskrant’ newspaper.

Leiden University is going to partner with the Asian Development Bank, a bank committed to regional development. President of the Executive Board Annetje Ottow signed a memorandum of understanding on this unique partnership in Manila on 27 April.

Leiden University will set up further activities with the Asian Development Bank (ADB).

Han de Winde will step down as a member of the faculty board of the Faculty of Science from 1 September 2018. De Winde had been vice–dean at the faculty since 2013. As director of education he was responsible for the bachelor's and master's programmes at the faculty.

In recent years, artificial intelligence has deeply permeated our society and the legal field is no exception. Bart Custers, Professor of Law and Data Science, spoke to ‘Mr. Online’ about AI and the law: ‘AI is currently a hype.’

The use of virtual girl Sweetie, used by the police to investigate pedofiles, is problematic in the Netherlands. Researchers of Leiden University and Tilburg University conclude that this is due to the criminal law applicable at the moment.

On May 22 eLaw's researcher Helena Ursic spoke at the international conference