Freedom of speech is the concept of the inherent human right to voice one's opinion publicly without fear of censorship or punishment. "Speech" is not limited to public speaking and is generally taken to include other forms of expression. The right is preserved in the United Nations Universal Declaration of Human Rights and is granted formal recognition by the laws of most nations. Nonetheless, the degree to which the right is upheld in practice varies greatly from one nation to another. In many nations, particularly those with authoritarian forms of government, overt government censorship is enforced. Censorship has also been claimed to occur in other forms and there are different approaches to issues such as hate speech, obscenity, and defamation laws.
The following list is partially composed of the respective countries' government claims and does not fully reflect the de facto situation, however many sections of the page do contain information about the validity of the government's claims alongside said claims.