Under the banner of " Degrowth " , recent years have seen the emergence of a new strand of emancipatory critique of economic growth and the search for social-ecological alternatives beyond capitalism and industrialism. Some even speak of a newly emerging social movement for Degrowth. While much has recently been written on Degrowth ideas, we know very little about the social base of this spectrum. The article presents results from an empirical survey among 814 of the 3000 participants of the 2014 international Degrowth conference in Leipzig, Germany – the largest Degrowth-related event so far. After introducing the reader to the history and some of the core ideas of Degrowth debates, it draws on the empirical results to argue that Degrowth can indeed be seen as an emerging social movement in Europe. It is shown that the Degrowth spectrum is united by a basic consensus for a 'reductive' turnaround in the societies of the Global North, as well as by consensual support for universalist, feminist, grassroots-democratic, and anti-capitalist ideas. Results of a factor analysis indicate a series of internal tensions and points of contention, the interplay of which is illustrated with reference to a cluster analysis. We conclude that, despite inevitable tensions and fissures within, Degrowth does provide the degree of consistency and shared identity needed to become a rallying point for a broader social movement addressing some of the most important challenges faced by European societies today.