As a result of globalisation and the European integration process, identity concepts of young Europeans are becoming more and more diverse and possibly heterogeneous. The factors that influence the development of identity formation and impact on identity constructions are complex--but language seems to be of central importance. It is generally accepted that language and identity are closely connected and that identities are shaped to a large extent through discursive practice. These interactions no longer take place in the mother tongue alone; they are increasingly affected by the wide use of English as a lingua franca (ELF) in Europe or, Euro-English. This raises the question of whether European identity should be built upon linguistic diversity, as officially promoted by the European Union, or whether the use of ELF could help to fulfill this unifying function. Drawing on a questionnaire survey conducted at the University of Braunschweig with 1061 students, the article investigates the potential role of ELF in the formation of a common European identity.