
Stephen Pearl Andrews was an American libertarian socialist, individualist anarchist, linguist, political philosopher, outspoken abolitionist and author of several books on the labor movement and individualist anarchism.

Émile Armand, pseudonym of Ernest-Lucien Juin Armand, was an influential French individualist anarchist at the beginning of the 20th century and also a dedicated free love/polyamory, intentional community, and pacifist/antimilitarist writer, propagandist and activist. He wrote for and edited the anarchist publications L'Ère nouvelle (1901–1911), L'Anarchie, L'En-Dehors (1922–1939) and L'Unique (1945–1953).

Kevin Carson is an American political writer and blogger. While he originally identified as a mutualist, he now describes himself as an anarchist without adjectives. He works as a Senior Fellow and Karl Hess Chair in Social Theory at the Center for a Stateless Society. Carson coined the pejorative term "vulgar libertarianism" to describe the use of free market rhetoric in defense of corporate capitalism and economic inequality.

Ernest Cœurderoy, (born at 22 January 1825 at Avallon ; died at 21 October 1862 at Geneva was a medical doctor, a revolutionary journalist and a French libertarian writer. He lived in exile for most of his life and committed suicide.

William Batchelder Greene was a 19th-century individualist anarchist, Unitarian minister, soldier and promoter of free banking in the United States.

Joshua King Ingalls was an American inventor, Christian minister, writer and land reformer who influenced contemporary individualist anarchists, despite never self-identifying as one.

Charles Joseph Antoine Labadie was an American labor organizer, anarchist, Greenbacker, social activist, printer, publisher, essayist, and poet.

Dyer Daniel Lum was an American anarchist, labor activist and poet. A leading syndicalist and a prominent left-wing intellectual of the 1880s, Lum is best remembered as the lover and mentor of early anarcha-feminist Voltairine de Cleyre.

Francisco Pi y Margall was a Spanish federalist and republican politician and theorist who served as president of the short-lived First Spanish Republic in 1873. He was also a historian, philosopher, romanticist writer, and was also the leader of the Federal Democratic Republican Party and the Democratic Party. Pi was turned into a sort of secular saint in his time.

Pierre-Joseph Proudhon was a French socialist, politician, philosopher, economist and the founder of mutualist philosophy. He was the first person to declare himself an anarchist, using that term, and is widely regarded as one of anarchism's most influential theorists. Proudhon is considered by many to be the "father of anarchism". Proudhon became a member of the French Parliament after the Revolution of 1848, whereafter he referred to himself as a federalist. Proudhon described the liberty he pursued as "the synthesis of communism and property". Some consider his mutualism to be part of individualist anarchism while others regard it to be part of social anarchism.

Ramón Dionisio José de la Sagra y Peris was a Spanish anarchist, politician, writer, and botanist who founded the world's first anarchist journal, El Porvenir.

Lysander Spooner was an American individualist anarchist. He was also an abolitionist, entrepreneur, essayist, legal theorist, pamphletist, political philosopher, Unitarian, writer and a member of the First International.

Clarence Lee Swartz (1868–1936) was an American individualist anarchist, whose best-known work, What is Mutualism? (1927) is a book explaining the economic system of mutualism.

Henri Tolain, was a leading member of the French trade union and socialist movement and a founding member of the First International and follower of Proudhon.

Benjamin Ricketson Tucker was an American anarchist and libertarian socialist. A 19th-century proponent of individualist anarchism which he called "unterrified Jeffersonianism", Tucker was the editor and publisher of the American individualist anarchist periodical Liberty (1881–1908) as well as a member of the socialist First International.

Josiah Warren was an American utopian socialist, individualist philosopher, polymath, social reformer, inventor, musician, printer and author. He is regarded by some as the first American anarchist and the four-page weekly paper he edited during 1833, The Peaceful Revolutionist, the first anarchist periodical published, was an enterprise for which he built his own printing press, cast his own type, and made his own printing plates.

Robert Anton Wilson was an American author, futurist, and self-described agnostic mystic. Recognized within Discordianism as an Episkopos, pope and saint, Wilson helped publicize Discordianism through his writings and interviews.