The article defines the right to freedom as a vital role in the existence of humanity, as it allows citizens to take an active part in the country's political life and shape public opinion. The author notes that the right to freedom of speech has ancient historical origins. Documents were analyzed in which the principle of freedom of speech was declared, in particular the Great Charter of Freedoms (1215), Bill of Rights (1689), Declaration of Independence (1776), Declaration of the Rights of Man and Citizen (1789), Universal Declaration of Human Rights (1948), International Covenant on Civil and Political Rights (1966) and other acts. It is emphasized that these documents became the basis for developing the right to freedom of speech in modern democratic countries and provided an opportunity to freely express one's opinions without being persecuted by the authorities. The article pays special attention to domestic regulation of the right to freedom of speech. The author notes that freedom of speech is one of the critical components of human and citizen rights in many legal systems. The theoretical aspect of this issue includes the analysis of different approaches and concepts to understanding the essence and scope of this subjective legal right. Philosophical foundations and legal methods for understanding "freedom of speech” are described. It was determined that the right to freedom of speech is not absolute and may be limited. The work lists the circumstances under which the outlined right may be limited. The author emphasizes that possible restrictions must be legal, necessary in a democratic society, and comply with the principle of proportionality. The article summarizes that freedom of speech is historically an essential human right, which forms the basis of the legal status of an individual. Without it, the functioning of a democratic state is impossible at all. But at the same time, it should be taken into account that freedom of speech is not only a right but also a responsibility that rests on those who use this right. Ensuring its adequate protection requires a combination of international standards, national legislation, and constant adaptation to modern realities.