The Seoul Peace Declaration was adopted by several hundred participants at an international peace forum in Seoul, organized by the Interreligious and International Federation for World Peace (IIFWP) founded by Rev. Sun Myung Moon of the Unification Church.

Some 1,500 world political and religious leaders and student activists adopted the declaration on August 15, 2003, calling for concerted international efforts to bring lasting peace to the Korean peninsula and for global cooperation beyond religions so that nations can find solutions to the critical problems facing the world community.