"This is European Social Innovation" was instigated and coordinated by the Social Innovation eXchange (SIX) at the Young Foundation, Euclid Network, and the Social Innovation Park, Bilbao. The aim of the project was to identify and highlight some of the most promising innovative initiatives, thereby raising the profile of social innovation across Europe, and creating an impact beyond the established social innovation community. The 10 selected projects were identified because of their potential for impact, and relevance to the issues facing Europe. We have not attempted to classify the best social innovation initiatives, rather, we have chosen to highlight some of the most promising innovations happening at the moment in different fields and countries across Europe.