The object of this research is an international organization “Human Rights Watch” that conducts and advocacy on human rights. The subject of this research is the activity of this international non-governmental organization since its establishment until 2020. The author examines such aspects of the topic as the history of creation of “Human Rights Watch”, the nature of its activity during the Cold War, the evolution of approaches towards the core issues in the area of human rights protection during the post-bipolar period; as well as analyzes the current campaigns of this international NGO. The methodological framework is comprised of the systemic, structural-functional, comparative-political approaches, methods of historicism, analysis, synthesis, induction, deduction, and observation. For the first time in Russian historiography, leaning on the primary sources and relevant scientific literature, the role of international non-governmental organization advocating for human rights “Human Rights Watch” is analyzes within the system of global governance since its foundation until the present. In conclusion, the author indicates a sizable contribution of the organization “Human Rights Watch” alongside other NGOs advocating for human rights in solution of global issues; however notes that these actors of world politics as not utterly unbiased and neutral organizations. On the one hand, namely due to the activity of such organizations, the problem of the supremacy of law,  universal human rights and freedoms became one of the key concepts of international relations at the turn of centuries; but on the other hand, they are rightly criticized for prejudice, political bias, and double standards.