The dimension of digital sovereignty is currently evolving as a key focus of transnational digital policy debates. The term ‘sovereignty’ relates back to the early days of International Relations as a territorial space of sovereign power. However, in today’s transnational ‘fluid’ data spaces, the concept of sovereignty requires a conceptual revision. This article provides first an overview of current digital sovereignty debates, in the second part a critical review of the current ‘toolbox’ of digital policy approaches in an international spectrum. The third part suggests an entirely new approach to revise debates of sovereignty in new contexts of the ‘data citizen’ and a global public sphere of deliberation.