Following Spolsky's definition of language policy, this introductory paper offers a brief reflection on the three main lines of research that are represented in this special issue regarding the relationship between internationalisation and language policies in higher education: management and planning, practices, and beliefs. In the first part, we comment on Englishisation and the establishment of multilingual policies as responses to the globalisation of higher education. The attitudes deriving from the interaction between English and local languages as a consequence of internationalisation are presented in the second part. Finally, the third part points at the interest of studying how the members of the academic community accomplish the management of language diversity in specific settings.