Adin Ballou (April 23, 1803 – August 5, 1890) was an American proponent of Christian nonresistance, Christian anarchism, and Christian socialism. He was also an abolitionist and the founder of the Hopedale Community.
Through his long career as a Universalist and Unitarian minister, he tirelessly advocated for the immediate abolition of slavery and the principles of Christian anarcho-socialism, and promoted the nonviolent theory of praxis (or moral suasion) in his prolific writings.
Christian pacifism is the theological and ethical position according to which pacifism and non-violence have both a scriptural and rational basis for Christians, and affirms that any form of violence is incompatible with the Christian faith. Christian pacifists state that Jesus himself was a pacifist who taught and practiced pacifism and that his followers must do likewise. Notable Christian pacifists include Martin Luther King Jr., Leo Tolstoy, Adin Ballou, Dorothy Day, Ammon Hennacy, and brothers Daniel and Philip Berrigan.
Christian anarchists, such as Ballou and Hennacy, believe that adherence to Christianity requires not just pacifism but, because governments inevitably threatened or used force to resolve conflicts, anarchism. Most Christian pacifists, including the peace churches, Christian Peacemaker Teams, and individuals like John Howard Yoder, make no claim to be anarchists.