festival for a sustainable Belfast

Following the success of our previous editions, RE[act] Festival returns in 2026 as a week-long celebration of sustainability, innovation, collaboration and action, taking place across Belfast from 9–15 November.

RE[act] brings together sustainability experts, businesses, communities, policymakers, creatives, innovators and changemakers to share ideas, celebrate what’s already happening, and explore how we can create a better, more sustainable future for Belfast and beyond.

This year, our programme is built around five interconnected themes: People, Planet, Peace, Partnership and Prosperity. Throughout the week, we’ll explore what these mean for our city and how they can help shape a future that is greener, fairer, healthier and more resilient.

Expect a packed programme of talks, keynote conversations, workshops, interactive experiences, film screenings, exhibitions, networking, outdoor activities and plenty of opportunities to get involved. From big ideas to practical action, RE[act] is about making sustainability accessible, engaging and most importantly, something we can all be part of.

Come along, get involved, meet people, share ideas and be inspired.

This November, let’s RE[act] together and help shape the Belfast we want to live, work and thrive in.