Fourierism (//) is the systematic set of economic, political, and social beliefs first espoused by French intellectual Charles Fourier (1772–1837). Based upon a belief in the inevitability of communal associations of people who worked and lived together as part of the human future, Fourier's committed supporters referred to his doctrines as associationism. Political contemporaries and subsequent scholarship has identified Fourier's set of ideas as a form of utopian socialism—a phrase that retains mild pejorative overtones.
Never tested in practice at any scale in Fourier's lifetime, Fourierism enjoyed a brief boom in the United States of America during the mid-1840s owing largely to the efforts of his American popularizer, Albert Brisbane (1809–1890), and the American Union of Associationists, but ultimately failed as a social and economic model. The system was briefly revived in the mid-1850s by Victor Considerant (1808–1893), a French disciple of Fourier's who unsuccessfully attempted to relaunch the model in Texas in the 1850s.