School has been identified as a suitable arena for targeting improvements in the health of children and young people. Teachers are highlighted as crucial contributors to student health which has resulted in changes in the teaching profession. The aim of this study is to examine the students’ perspective on the role of the teacher in working with student health. Interviews with 34 students aged 16–19 years were carried out. Data were analysed using qualitative content analysis with theoretical underpinnings from pragmatism and symbolic interactionism. This approach identified four dominating roles for teachers: (1) a creator of joyful learning, (2) a creator of a sense of control, (3) a spreader of happiness, and (4) a creator of feeling valued. This study shows that the role of the teacher in working with student health is in acting, not in being, and that this role is constantly (re)created through interaction. The student perspective on the role of the teacher in student health work has close similarities to the role of the teacher in inclusive teaching, merging relational competence with didactic skill. In conclusion, we argue that developing teachers’ didactic as well as relational competency, along with understanding competence within a pragmatic and symbolic interactionist theoretical framework, could improve student health practices.