The topic of this thesis is the father's vision of their role during the period of children's adolescence. In the theoretical framework, I used social constructivism and Bronfenbrenner's theory of ecosystems. I also explained Lamb's factors of father involvement: engagement, availability, and responsibility. In the theoretical framework, I presented how other authors interpret the father's involvement in the child's upbringing and what are the benefits of involvement for the child's physical, social, emotional, and cognitive development. In the empirical part of this thesis, I presented how the research was conducted and the results of the research. The aim of the research was to describe how the participants understand and practice their own role in the upbringing of adolescents and which factors in the process of shaping the role of the father during the child's adolescence are perceived as significant. I conducted nine semi-structured interviews which I analyzed after transcription. I conducted a qualitative thematic analysis of the data. Participants were interviewed online and fathers whose children are between the age of 12 and 19 years old participated. The results show that fathers are aware of the importance of their involvement in the upbringing of a child, but they state the difference between their and the mother's role. They consider society and the media to be the main factors shaping the father's role in adolescent development, and their lived experiences influence their perception of the father's role during children's adolescence. Finally, the thesis concludes by presenting limitations of the conducted empirical research and opening up new topics that could be explored to contribute to new pedagogical insights.