François Marie Charles Fourier (April 7, 2 in Besançon – October 10, 1837 in Paris) is a French philosopher.

An influential thinker, some of Fourier's social and moral views, held to be radical in his lifetime, have become main currents in modern society.

Fourier is, for instance, credited with having originated the word feminism in 1837.

Fourier's views inspire the founding of the community Utopia in Clermont County, Ohio, as well as La Reunion near present-day Dallas, Texas and several other communities within the United States of America, including the North American Phalanx in New Jersey and the Community Place and Sodus Bay Phalanx in New York State.