Anarcho-pacifism (also pacifist anarchism or anarchist pacifism) is a tendency within the anarchist movement which rejects the use of violence in the struggle for social change. The main early influences were the thought of Henry David Thoreau and Leo Tolstoy while later the ideas of Mohandas Gandhi gained importance. It developed "mostly in Holland (sic), Britain, and the United States, before and during the Second World War".

The main precedent was Henry David Thoreau, who, through his work Civil Disobedience and tax resistance, influenced both Leo Tolstoy and Mohandas Gandhi's advocacy of nonviolent resistance.

At some point anarcho-pacifism had as its main proponent Christian anarchism. The first large-scale anarcho-pacifist movement was the Tolstoyan peasant movement in Russia. They were a predominantly peasant movement that set up hundreds of voluntary anarchist pacifist communes based on their interpretation of Christianity as requiring absolute pacifism and the rejection of all coercive authority. They were active throughout Russia and followed a strict Vegetarian diet. Because of their refusal to recognize the authority of the Tsarist state they were targeted for severe repression and many were killed outright^{[citation needed]} or relocated to Siberia. After the Bolshevik Revolution they were again targeted for repression because they refused to recognize the authority of the new socialist state, just as they had refused to recognize the authority of its predecessor. Most of them were killed in the purges under Lenin and Stalin.

Lev Nikolayevich Tolstoy (Russian: Лев Никола́евич Толсто́й, pronounced [lʲev nʲɪkɐˈlaɪvʲɪtɕ tɐlˈstoj] ( listen); known in the Anglosphere as Leo Tolstoy) (September 9, 1828 – November 20, 1910) was a Russian writer who primarily wrote novels and short stories. Later in life, he also wrote plays and essays. His two most famous works, the novels War and Peace and Anna Karenina, are acknowledged as two of the greatest novels of all time and a pinnacle of realist fiction. Many consider Tolstoy to have been one of the world's greatest novelists. Tolstoy is equally known for his complicated and paradoxical persona and for his extreme moralistic and ascetic views, which he adopted after a moral crisis and spiritual awakening in the 1870s, after which he also became noted as a moral thinker and social reformer.

His literal interpretation of the ethical teachings of Jesus, centering on the Sermon on the Mount, caused him in later life to become a fervent Christian anarchist and anarcho-pacifist. His ideas on nonviolent resistance, expressed in such works as The Kingdom of God Is Within You, were to have a profound impact on such pivotal twentieth-century figures as Mohandas Gandhi and Martin Luther King, Jr.