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Symposium Registration | Call for ParticipationWorkshop Registration | Accommodations & Travel | Sponsoring

General Information

OHDSI’s mission is to improve health, by empowering a community to collaboratively generate the evidence that promotes better health decisions and better care. As a community we envision a world in which observational research produces a comprehensive understanding of health and disease. OHDSI promotes a collaborative approach to research and has rapidly grown into a vibrant international community. Everyone is welcome to actively participate in OHDSI, whether as a patient, a health professional, a researcher, or someone who simply believes in our cause.




2019 2018

The fourth European OHDSI Symposium will be held in Rotterdam (NL) on July 3rd, 2023, again at an inspiring location, the Steam Ship Rotterdam. This year's symposium is entitled “Full Steam Ahead”.

The symposium is a platform to share results and ideas about the use of the OMOP-CDM, tool development, and future research. The day will include a collaborator showcase including posters and podium presentations to highlight OHDSI’s research achievements, and interactive demonstrations of OHDSI’s open-source software tools.

During the symposium, we will update you on the exciting work being done all over Europe, in National Nodes, large European Projects, and other initiatives. Like last year, we will also reserve a lot of time for networking.

We encourage people who are new to OHDSI and are interested to learn more about this exciting initiative to join our Journey. There is a slot reserved for newcomers to meet the experts in one-to-one sessions. 

The main symposium will take place on Monday, July 3rd, 2023 on the ship SS Rotterdam. Saturday, July 1st, and Sunday, July 2nd will be dedicated to workshops and workgroup meetings, to be held in the Education Centre of the Erasmus University Medical Center, Rotterdam, The Netherlands. For the full agenda, please click here

For instructions how to arrive at the SS Rotterdam, please follow this link.

For instructions how to arrive at the Erasmus University Medical Center, Rotterdam, please follow this link.

Symposium Registration

The fee to attend the symposium is €100. The workshops and workgroup meetings are free. Symposium Registration and Workshop Registration are separate. Note we will have 350 places available!! Please follow the link below to book a space: click here to register.

PhD, master, and bachelor students can use the discount code: STUDENT.

Call for Participation

We accept submissions for posters and software demonstrations that will be presented during collaborator showcases. Collaborators will be invited to share their final posters onto a poster repository on the OHDSI website.

Important dates:

April 30th, 2023: Deadline for abstract submissions  

May 26th, 2023 (May 19th, 2023): Notification of acceptance and selection for lightning talk sessions 

July 3rd, 2023: European OHDSI Symposium in Rotterdam


This year we will have a rapid fire session in which authors of selected abstracts will be invited to present their work (in 5-min slots). 

For more information and details on how to submit your abstract see: call for participation.  

Workshop Registration

Saturday, July 1st, and Sunday, July 2nd will be dedicated to workshops and workgroup meetings. The list of workshops and meetings can be found in the agenda above. Participants who have registered for Saturday or Sunday will receive a meeting registration form via email, enabling them to make their preferred selections. 

Accommodation & Travel

Please note that registration to the European OHDSI Symposium only covers your attendance. All travel and accommodation arrangements are the responsibility of each participant. 

A special deal/arrangement has been organised with SS Rotterdam for accommodation, to book with a discount please click here

Please note: unfortunately, the special rate could only be offered for nights 2nd-3rd and 3rd-4th, as Saturday, July 1st has been (almost) fully booked. 

Please find a list of other suggested hotels below:

For more travel tips: click here.


If you would like to sponsor this event, please have a look at our sponsorship opportunities. We definitely invite all the EHDEN certified Small to Medium-sized Enterprises to book a stand and meet new Data Partners.


If you have any further questions about the OHDSI symposium please send an email to: This email address is being protected from spambots. You need JavaScript enabled to view it.