This paper constitutes an introduction to our special issue on Transcending circulations of southern and northern concepts: Towards mobile and dialogic perspectives on language puts the spotlight on the hegemonies and marginalizations of mainstream academic productions and the circulations of concepts in the contemporary fields that are labelled Multilingualism, Applied Linguistics, Sociolinguistics, etc. Transcending the demarcations that have emerged in the Language Sciences broadly conceptualized across time, it particularly attempts to illuminate, through different scholars’ engagements, the circulations of concepts inside and across academic circles located in various places on the planet, identified as central or marginal places of production of academic norms, including what is understood as global epistemic circuits. The editors present reflections from their own positionalities and recent trajectories as illustrative points of departure.