This study explores the challenges and opportunities of social innovation in two multicultural societies, namely, France and the United Kingdom. We use the Cajaiba-Santana (2014) definition of social innovation to examine how the social innovation concept fits patterns reported in the context of multicultural societies following different acculturation modes. As pointed out by Cajaiba-Santana (2014), the social innovation literature is positioned around two lines of enquiry: institutional theory (DiMaggio and Powell 1983) which explains the role that institutions play in informing practice and structuration theory (Lettice and Parekh 2010; Giddens 1984), which explains the process of social action and evolution.