Open innovation is becoming well established as an important business model. But can it be used in public services, creating opportunities for citizens to participate in generating solutions for their communities? We think it has a lot of promise – and we’re not alone. Communities around the world are gathering together to solve a wide range of challenges – health, transport, access to technology, energy, food, and more. To demonstrate the positive impact this approach can have, we explore three initiatives based on the concept of ‘Living Labs’ – “user-centred, open innovation ecosystems based on a systematic user co-creation approach integrating research and innovation processes".