Last Friday, we wrapped up another edition of Open Data Day with the feeling that despite recent backlashes and new structural and geopolitical challenges to open data and technologies, the open data community remains active and resilient in every corner of the planet.
In 2025, we saw powerful bottom-up energy across 189 events in 57 countries and more than 15 languages. We are small data teams within public institutions, enthusiast collectives working with communities, innovative academics, mappers, and makers from around the world. And together we make a difference!
Before starting the #ODDStories 2025 series, with stories of impact from events around the world, here’s a high-level report with the main figures and data on the 2025 edition.
We at the Open Knowledge Foundation would like to thank Datopian and the Communauté d’Afrique Francophone des Données Ouvertes (CAFDO) for their support in sponsoring the mini-grants. This financial support allows us to expand local open data networks in places that often don’t receive any form of funding (such as Francophone Africa, the focus of an exclusive stream in this year’s edition).
Let’s move on to 2026 with an even bigger, more diverse and impactful event!
About Open Data Day
Open Data Day (ODD) is an annual celebration of open data all over the world. Groups from many countries create local events on the day where they will use open data in their communities. ODD is led by the Open Knowledge Foundation (OKFN) and the Open Knowledge Network.
As a way to increase the representation of different cultures, since 2023 we offer the opportunity for organisations to host an Open Data Day event on the best date over one week. All outputs are open for everyone to use and re-use.
For more information, you can reach out to the Open Knowledge Foundation team by emailing opendataday@okfn.org. You can also join the Open Data Day Google Group or join the Open Data Day Slack channel to ask for advice, share tips and get connected with others.
