This edited book examines language perceptions and practices in multilingual university contexts in the aftermath of recent theoretical developments questioning the conceptualization of language as a static entity, drawing on case studies from different Northern European contexts in order to explore the effects of phenomena including internationalization, widening participation, and migration patterns on language attitudes and ideologies. The book provides cutting-edge perspectives on language uses in Northern European universities by drawing attention to the multiplicity of language practices alongside the prominence of English in international study programmes and research publication. It will be of interest to students and scholars of multilingualism, sociolinguistics, applied linguistics, and education, as well as language policymakers.