Interreg Cooperation Day

On or around 21 September every year, Interreg comes together to celebrate Interreg Cooperation Day, a Europe-wide campaign facilitated by Interact and led by Interreg programmes and partners, who organise events across the continent to bring cooperation closer to citizens.

The mission of Interreg Cooperation Day is to showcase how projects reduce disparities between regions and countries and to demonstrate the concrete benefits of regional cooperation.

In the 2025 edition, 85 events were celebrated across 29 countries and four continents, with programmes participating from all 4 strands and more than 50.000 participants taking part.

Campaign 2026: Where to start

The Interreg Cooperation Day 2026 campaign will be launched in spring.

To support programmes and partners in preparing their local events, Interact will publish an updated Campaign Guide and organise a kick-off webinar in May 2026, presenting the campaign concept, communication tools, and practical ideas for implementation.

More information on the campaign materials and activities will be shared in due course.

Stay informed via the Interreg Day Teams group, where we will continue to share updates on additional campaign tools and activities, including the joint social media campaign and upcoming events.

Services Interact offers

Interact offers a full range of services to support programmes in promoting their own local events as part of a wider communication campaign. These include:

• Official identity branding
• Customisable promotional video
• Social media boosting campaign
• Website visibility
• A competition to highlight the best local events
• A practical guide with ideas and step-by-step instructions for local activities
• Daily individual advice and support

If you would like to explore everything related to the latest edition of the campaign, please visit: Interreg Cooperation Day 2025 - Interreg EU

Contact 

For more information please contact Rosa Escamilla.

Want to exchange on this topic?

Interact offers an online space for those working in Interreg Communication and Visibility to share information and exchange. You can find out more about our MS Teams environment on our Networks page, and see all our networks in our Portal. 

If you would like to learn more, please contact Rosa Escamilla.

All campaign information will be promoted through the Interreg.eu portal.