This article explores the religious policy of the Republic of Kazakhstan as a strategic factor in fostering interfaith harmony and building a unified nation. The research analyzes the legal, institutional, and ideological mechanisms designed to uphold secularism, protect believers’ rights, and counter religious extremism. Based on legal texts, international reports, and sociological data, a SWOT analysis of Kazakhstan’s religious policy is conducted. The findings highlight the strengths of the model—such as institutionalized dialogue and societal tolerance—alongside challenges like strict registration requirements and limited missionary freedoms. The study underscores the need to modernize legislation, enhance educational efforts, and deepen cooperation between state and religious communities. While focusing on the national context, the research references international standards. Its practical value lies in offering recommendations for improving religious governance and promoting legal equality, social stability, and national cohesion.