A Pacifist organization promotes the pacifist principle of renouncing war and violence for political ends. They are distinguished from organizations concerned only with removing nuclear weapons from war, though those organization may call for suspension of hostilities as well. Other organizations include those that deal with other concerns, but have a strong pacifist element.

Pacifist organizations:

• American Friends Service Committee
• Anglican Pacifist Fellowship
• Central Committee for Conscientious Objectors
• Centre for Nonviolent Action
• Christian Peacemaker Teams
• Fellowship of Reconciliation
• Fellowship Party
• Mennonites
• No-Conscription Fellowship
• Nonviolence International
• No More War Movement
• Peace Brigades International
• Peace News
• Peace Party (UK)
• Peace Pledge Union
• Peace Society
• Religious Society of Friends (Quakers)
• Soka University of America
• War Resisters' International
• War Resisters League

"Nuclear pacifist" organizations:

• CND
• Pugwash

Organizations that cite pacifism as an aim:

• Greenpeace