The topic of this paper is overprotective parenting as a challenge to family-school collaboration. The theoretical part of the paper firstly discusses the concept of overprotective parenting, which is then followed by a discussion on the importance of family-school collaboration in the school context, but also the challenges that teachers face while working with overprotective parents. The theoretical framework is followed by a review of qualitative research conducted for the purpose of this paper, which aims to outline how high school teachers describe and how they interpret their experiences of working with parents they consider overprotective. As part of the research, online interviews were conducted with thirteen high school teachers from central and western Croatia. Research has shown that overprotective parenting is not common in high schools. Also, it has been found that collaboration with overprotective parents is challenging for teachers and has negative consequences for them and their work. On the other hand, teachers are also aware of the potential of working with overprotective parents and have seen this mostly as an opportunity for personal development and learning. Finally, teachers also gave suggestions on how to improve the quality of the collaboration with overprotective parents. The paper concludes with a final overview of the research, possible limitations and ideas for future research.