Charles Coates Walker (September 17, 1920—July 11, 2004) was an American Quaker activist and trainer for nonviolent direct action in both the civil rights and peace movements.

He worked throughout his life to bring segregation, racial injustice, nuclear and biological weapons, and war to public awareness.

He used Gandhian methods of nonviolence, writing training materials and organizing marches, vigils, protest demonstrations, conferences and campaigns in different parts of the world.

[2] Walker worked for the Ohio branch of the American Friends (Quakers) Service Committee (AFSC) from 1946 to 1948.

[3] Dr. Martin Luther King Jr., who studied at Crozer from 1948 to 1951, wrote in his 1958 book, Stride Toward Freedom: The Montgomery Story, that he was “exposed for the first time to the pacifist position in a lecture by A. J. Muste.”[4] Working with the Philadelphia Yearly Meeting Friends (Quakers) Peace Committee he collaborated on a pamphlet published in 1957, A Perspective on Nonviolence, which was used by civil rights organizations and trainers in nonviolence, and in 1961 he published his own manual, Organizing for Nonviolent Direct Action.