The present paper discusses internal communication in the global context, with a focus on language as an issue for the organization. Although ‘language’, naturally, is a resource that enables any – internal or other – communication, it has not been examined in public relations research but has been taken for granted or as given. The current pace of globalization in all sectors has rapidly globalized internal communication and the language issue needs to be addressed. On the basis of two empirical studies we discuss language strategy and language use in international internal communication. Our findings show that although a common ‘corporate language’ – which mostly today refers to English – enables internal communication, it is not a straightforward solution but a number of issues need to be considered. For example, as international communication in a business context is today mostly conducted by non-native speakers of English, their language can be characterized as BELF (English as Business Lingua Franca), which differs from ‘standard English’ in many ways. Also, language issues need to be considered for organizational credibility and knowledge sharing and for constructing trust and rapport in international interaction.