Freedom of thought, conscience and religion as one of the fundamental freedoms and human rights, the source of which is inherent, inalienable and inviolable human dignity, is guaranteed in addition to the provisions of international law also in documents issued by the Conference/Organization for Security and Cooperation in Europe (CSCE/OSCE). They emphasize a clear link between religious freedom and the need to ensure security. Of special importance to this issue are the political guidelines: Freedom of Religion or Belief and Security: Policy Guidance, which are entirely devoted to this subject in accordance with the concept of comprehensive security. The document formulates guiding principles, practical tips and recommendations on many important issues related to freedom of religion or belief and security in the OSCE region. In the study, the content of the indicated document was analyzed and an attempt was made to evaluate it. This allows for the conclusion that ensuring religious freedom is an important element in ensuring security.