“Digital sovereignty” has become a buzzword in digital policies. Contrary to the imaginary of digital transformation as preceding an era of limitless global networking in the 1990s, approaches to state regulation and delimitation of data flows as well as programmes for national digital infrastructures are justified with calls for digital sovereignty across very different contexts. This forum brings together contributions from political geography, law, computer science, and ethics that compare and analyse discourses and practices of digital sovereignty. The case studies on Russia and the EU reveal parallels as well as fundamental differences in the conception and implementation of digital sovereignty. Essays on the challenges posed by new fo...