The English language is present everywhere today, so it is also part of a daily life of many people living in Croatia. Social media and technological advances have allowed English to become one of the most widely spoken languages in the world. As adolescents are social group that is strongly influenced by contemporary trends, including using English in their everyday life, the aim of this B.A. thesis is to discover in what ways English affects Croatian adolescents and to provide a comprehensive sociolinguistic analysis of the role of English in the communicative practices of Croatian adolescents. To answer these questions, this research uses questionnaire and interview as data collection methods, which provided a nuanced insight into the status of English among adolescents. The research, which included 4 interviews and 46 survey participants, yielded the following results: Firstly, adolescents use English most often on social networks and the use of English increases as more social networks are used in society. Secondly, according to respondents’ answers, the use of English is increased among the younger population, compared to the older population, as there are differences in the level of proficiency in English and the purposes for which English is used in social relations. Finally, adolescents seem to adopt the views of the older population (namely, their parents and other family members) and the media surrounding them by emphasizing the need to use the Croatian standard language, which they see as a protection against the perceived harmful influence of English on Croatian.