This paper describes a qualitative study of preschool teachers' beliefs about heteronormativity and its role in preschool. The purpose of this study was to examine preschool teachers' ideas and beliefs about heteronormativity and the ways in which it manifests itself in preschool, and to investigate how they perceive the possibility and the need to work on issues related to heteronormativity in preschool. The study is qualitative and is conducted through interviews with preschool teachers, and analysis of information letters from preschools sent to parents. The analysis of the letters was intended to critically examine how words and language could be linked to the heteronormative and also to determine which subjects was conveyed in these everyday texts. The study is based on queer theory and social constructivism. The results show that in the matter of the heterosexual norm is often a conflict between the fear of stigmatization and the risk of obscuring the norm accents. Much also indicate that a lot is very situation-bound in preschool and that talks about heteronormativity is not addressed until the norm is clearly broken by the presence of same-sex parents.