Each year Leiden University, its departments and its faculties publish an annual report which contains all the important information and statistics for that year.

Being a student involves a number of administrative matters such as student registration, tuition fees and student cards. For international students there are also immigration and residency considerations. Learn about administrative procedures for students and what to do if you are unhappy with an administrative…

Met Microsoft Teams kun je op afstand samenwerken met je medestudenten.

The role of the Board of Examiners is to ensure that study programmes adhere to their Course and Examination Regulations. The Board of Examiners oversees all tests and examinations within the institute and determines whether students have acquired the knowledge and skills required for the awarding of…

The course selection varies each year. On this page, you will find courses offered in 2026–2027.

The university finds it important that students and staff are offered a safe environment. Read here about the safety measures in place and what you should do in case of emergencies or other incidents.

As a student residence permit holder, you must make sufficient study progress each year.

All students in the Netherlands are invited to take part in the National Student Survey (NSE) once a year. Via the NSE you can give your opinion on the positive aspects of your study programme, as well as what you think could or should be improved.

Zoom is a video conferencing app for meetings of up to 300 people. Lecturers can give online education via Zoom. As a student, you can also make use of Zoom for online meetings.

What to do if your residence permit is expired, lost or stolen.

Regulations for student residence permit holders who would like to work or do an internship.

Your student or registration card is your proof of registration as a student of Leiden University.

Consequences of temporarily discontinuing your stay for your residence permit

Education administration offices

Leiden University is committed to becoming an inclusive community that enables all students and staff to feel valued and respected. Do you have questions about diversity and inclusion? Or are you looking for advice, support or contact? Find out who you can turn to at Leiden University.

Lecture

Cancer research generates massive amounts of data, but traditional tools often fail to fully harness their potential. How can we unlock this data to provide better treatments for cancer patients? PhD candidate Marina Gorostiola González explored this by using advanced data analysis techniques to guide…

The SENSYN project has found a solution to few public datasets for criminological research: synthetic datasets. Marieke Liem talks about this unique innovation

Can we improve the living environment of people with dementia with software and smartwatches? Daniela Gawehns did research in a care facility for people with dementia as part of the project 'Dementia back in the heart of society'. This way, she tried to find out whether an open living environment leads…

The more data from cancer research we pool, the better we can search for new treatments. But how can we keep patient data safe when sharing it? Leiden researchers will tackle this challenge in a major European project.

The right medicine in the right dosage for every patient, that is something medical science aspires. 'Personalised medicine' is the term for that. But it does require a lot of research with patient data and that can be hard to get due to privacy legislation. Researchers Laura Zwep and Coen van Hasselt…

Jildau Bouwman has been named as professor by special appointment of the chair ‘Remote Health Monitoring’ at Leiden University. The systems biologist and TNO Digital Health Innovation figurehead will investigate how digital solutions can contribute to better healthcare at home. ‘Home care is often more…

Online education and assessments

A European team of astronomers has discovered the largest stellar black hole in the Milky Way. It is more than thirty times as massive as our sun and is located in the constellation of Aquila, about two thousand light-years from Earth. The astronomers stumbled upon the black hole by chance while preparing…

Assistant Professor Vedran Dunjko and his team receive a €100,000 gift from Google to support them in their quantum research. The research focuses on whether quantum computers can provide new ways of understanding the mysteries of high-energy physics. Google is committed to supporting ambitious research…

Understanding what our buildings and cities are made of is an important step in making them more sustainable. Industrial ecologist Tomer Fishman (CML) has received an ERC Starting Grant to map the construction materials used in buildings in the Global South. 'Without the data, you can't formulate po…

Does gravity work the same when you look at the largest scales in our universe? That’s what Leiden physicist Alessandra Silvestri will study with a 2 million euro ERC Consolidator grant. ‘We assume that it does, but we don’t actually know.’

Research

ESA’s space telescope Gaia, which maps the Milky Way, completes its active phase of scanning the sky on 15 January. Over the past decade, Gaia has made more than three trillion observations of about two billion stars and other cosmic objects. ‘Gaia is already the discovery machine of the decade,’ Leiden…

Researcher Max van Duijn and PhD student Bram van Dijk apply language models to stories told by children to investigate empathy. For this research, they received the Best Paper Award at the Computational Natural Language Learning Conference in Singapore.

Why use Google Maps when you can also calculate your bike route based on your own data. Statistician and cyclist Alexander Dürre sees statistics in everything around him. He analyses data of soccer games and calculates the possible winners of cycling races. ‘When I have too much time, I apply statistics…

A consortium of research infrastructures focused on water quality has received €4.18 million in funding from the Dutch Research Council (NWO). This grant will support the transformation of outdoor laboratories at Leiden University, NIOO-KNAW, Radboud University, and Wageningen University & Research…

Not sure what your next step is in choosing your studies or planning your career? Science Career Service is here to help, from making study choices to career orientation and preparing for the labour market.

Research

Preparations

As an international student, there are a number of matters you should take care of prior to leaving the Netherlands at the end of your studies.

Do you want to contribute to society and do you have affinity with space? In the LDE Space & Society Honours Programme, you will learn how the two are connected and tackle a challenge in the space sector.

When a bacterium becomes resistant to one antibiotic, it may sometimes become more sensitive to another. This biological side-effect offers an unexpected opportunity in the fight against antibiotic resistance.

Today, ESA’s Gaia mission releases its new treasure trove of data about our home galaxy. Astronomers, led by the Leiden astronomer Anthony Brown, describe strange ‘starquakes’, stellar DNA, asymmetric motions and other fascinating insights in this most detailed Milky Way survey to date.

Anthropologist Rodrigo Ochigame studies how AI is changing the practice of scientific research. From astrophysics to mathematics to climate science, they find that the adoption of new AI models is raising questions about what counts as reliable scientific evidence.

To understand the universe as a whole, simulations on a cosmic scale are required. An international team of astrophysicists, led by Leiden University, is today making one of the largest cosmological datasets ever available for free. It comprises more than 2.5 petabytes of simulation data.

Two Leiden Science researchers received an NWO-XS grant for their research. Both projects are highly promising, but also high-risk. Macrophages that trap bacteria and data storage made from 2D materials convinced the board of their potential.

Henk Hoekstra and Alessandra Silvestri work on the astronomy and theoretical physics in the Euclid mission. These Dutch researchers are part of the mission.

Sharing scientific data, transferring money, or sending other sensitive information online: with cryptography, applications make sure your data does not fall into the wrong hands. Mathematician Thomas Attema (CWI/TNO/Leiden University) helps with this. For his PhD research, he developed a new technique…

Crucial information about research, funding or how university rankings are created is often not freely accessible. The Barcelona Declaration on Open Research Information calls for such information to be made open. Professor Ludo Waltman is one of its initiators. What needs to change?

ASTRON en de Universiteit Leiden beginnen samen een nieuwe leerstoel over sterrenkunde en AI. Bijzonder hoogleraar Joeri van Leeuwen gaat deze positie vullen.

Data from 41 million galaxies does not shake up the standard cosmological model after all. To that conclusion, to their own surprise, comes an international team of researchers including Koen Kuijken, professor at the Leiden Observatory.

The brightness peak of the ring around M87's supermassive black hole has shifted 30 degrees counterclockwise in a year. This is shown by new images released by the Event Horizon Telescope consortium.