Abstract
The aim of this paper is to investigate the balance between the best interest of the child and Lesbian, Gay, Bisexual, Transgender and Intersex (LGBTI) non-discrimination in the parent/child relationship in the case law enacted by the two supranational courts competent for the protection of human rights: the Inter-American Court of Human Rights, with the Atala Riffo case, and the European Court of Human Rights, with the Salgueiro, Fratté, E.B., Gas and Dubois cases. The case law analysis is focused on two different points of academic interest: analysing how the balance in protecting the interests of children and the principle of non-discrimination works; and checking the different degrees of enforcement of the judgments of the Inter-American Court of Human Rights and European Court of Human Rights in their national systems of reference of multilevel protection of human rights.