This is a list of cases that appeared before the Supreme Court of the United States involving the First Amendment to the United States Constitution.

Cases that consider the First Amendment implications of payments mandated by the state going to use in part for speech by third parties

Cases concerning restrictions on the time, place, and manner of speech

Cases pertaining to whether or not extending protections to speech constitutes government endorsement of speech.

Cases about restrictions on speech by third parties funded by the government.

Cases concerned with the definition of obscenity and whether a particular work or type of material is obscene.

Appeals of criminal convictions for possessing, selling or distributing obscenity that focused on that issue

Cases involving the search and seizure of allegedly obscene material