Peace Boat is a global non-government organization headquartered in Japan established for the purpose of raising awareness and building connections internationally among groups that work for peace, human rights, environmental protection and sustainable development. "Peace Boat" may also refer to one of the ships embarking on a cruise under the Peace Boat organization. Since its founding in 1983, the Shinjuku, Tokyo based organization has launched more than 100 voyages. These cruises, the main operation of the Peace Boat organization, are on average carried out at least three times a year. Peace Boat, described by the San Francisco Chronicle as a "floating university of sorts", offers educational opportunities aboard, with conferences related to global events. They also provide humanitarian aid at their various stops and visit local organizations.

Hibakusha is a word of Japanese origin generally designating the people affected by the atomic bombings of Hiroshima and Nagasaki at the end of World War II.