SEYEDNASSERI, MohammadMehdi; ABBASI, Mahmoud. The Right to Mental Health of Children in Cyberspace in the Light of the International Human Rights System: Background and Aims: The right to mental health is one of the main components of the right to health and one of the most important examples of children’s rights. Various factors are effective in threatening or realizing this right of children, and cyberspace is one of them. Virtual space is important because nowadays children spend a lot of time in that environment, and this happens while a significant part of this space is not only not suitable for the specific age and mental state of children, but also the effects of It also leaves a damage on their soul and spirit. This research, with descriptive analytical method, seeks to answer the question: How can the right to mental health of children be realized in cyberspace according to international human rights documents? To answer this question, various children’s rights in cyberspace such as the right to education, the right to privacy, the right to security, and the right to play and have fun and their relationship with the right to children’s mental health have been investigated.The results of this research indicate that in the international human rights system, especially in the field of protecting children’s rights, comprehensive measures have been put before the States. Materials and Methods: The current research is applied in terms of purpose and descriptive-analytical in terms of the type of research, which has been collected and analyzed by using library resources and examining a wide range of documents and procedures and other research works. Ethical Considerations: Honesty and ethics have been observed in searching and referencing. Finding and Conclusion: It is necessary to pay attention to the duties of States in protecting and protecting the rights of children in the digital environment at the international and domestic levels. General comment No. 25 published on March 21, 2021, by the United Nations Committee on the Rights of the Child, on how to apply the Convention on the Rights of the Child Children paid by states in the digital sphere. The committee’s purpose of this General comment was to provide a strategy for legislation and policy making in the field of fulfilling the obligations of states in the framework of the Convention on the Rights of the Child and its optional protocols in the light of the opportunities, risks and challenges of the digital environment. To put it better, today with the general interpretation of this committee, the rights of the child are guaranteed not only in the offline environment but also in the digital and online environment. Bioethics and Health Law Journal (BHL), [S. l.], v. 5, n. 5, p. 1–12, 2026. DOI: 10.22037/bhl.v5i5.46260. Disponível em: https://journals.sbmu.ac.ir/index.php/bhl/article/view/46260. Acesso em: 8 jul. 2026.