On 15 March 1950, the World Peace Council approved the Stockholm Appeal, calling for an absolute ban on nuclear weapons. The appeal was initiated by the French physicist, communist and 1935 Nobel laureate in Chemistry Frédéric Joliot-Curie. About two weeks after the start of the Korean War, the initiative's first publication called Peacegram claimed that the appeal has already earned 1.5 million signatories. The total gathered petitions were allegedly signed by 273,470,566 persons (including the entire adult population of the Soviet Union). The appeal was also signed by many prominent public figures, artists, and intellectuals. The text of the appeal read:
We demand the outlawing of atomic weapons as instruments of intimidation and mass murder of peoples. We demand strict international control to enforce this measure.
We believe that any government which first uses atomic weapons against any other country whatsoever will be committing a crime against humanity and should be dealt with as a war criminal.
We call on all men and women of good will throughout the world to sign this appeal.
Anti-communists in France responded to the Stockholm Appeal (French: L'Appel de Stockholm) by setting up the Paix et Liberté group to counter the Communist propaganda with their own: one of their first posters was La Pelle de Stockholm ("The Spade of Stockholm") digging the graves of the countries in Eastern Europe that had been subjugated by the Soviets.
- Jorge Amado, Brazilian writer and member of the Brazilian Academy of Letters
- Herbert Aptheker, American historian and political activist
- Louis Aragon, French poet
- Pierre Benoit, French novelist and member of the Académie française
- Leonard Bernstein, American composer and conductor
- Rudolf Carnap, German philosopher and advocate of logical positivism
- Marcel Carné, French film director
- Marc Chagall, Russian-French artist
- Maurice Chevalier, French actor and cabaret singer
- Jacques Chirac, French politician and later President of France (1995–2007)
- Frank Marshall Davis, American journalist, poet and activist
- W. E. B. Du Bois, American sociologist, historian and activist
- James Gareth Endicott, Canadian clergyman and Christian missionary
- Ilya Ehrenburg, Soviet-Jewish writer, journalist and historian
- Lion Feuchtwanger, German-Jewish novelist and playwright
- Vincent Glinsky, American sculptor
- Dashiell Hammett, American novelist and screenwriter
- Leo Hurwitz, American documentary filmmaker
- Frédéric Joliot-Curie, French physicist, 1935 Nobel Prize in Chemistry laureate and President of the World Peace Council (1950–1958)
- Lionel Jospin, French politician and later Prime Minister of France (1997–2002)
- Alfred E. Kahn, American journalist, publisher, and head of the Jewish People's Fraternal Order
- Rockwell Kent, American painter and graphic artist
- Robert Lamoureux, French actor, screenwriter and film director
- Artur Lundkvist, Swedish author, critic and member of the Swedish Academy
- Thomas Mann, German writer, essayist and 1929 Nobel Prize in Literature laureate
- Moa Martinson, Swedish author of proletarian literature
- Henri Matisse, French painter and sculptor
- Yves Montand, Italian-French actor and singer
- Pablo Neruda, Chilean poet, diplomat and 1971 Nobel Prize in Literature laureate
- Noël-Noël, French actor and screenwriter
- Erwin Panofsky, German-Jewish art historian
- Charlie Parker, American jazz saxophonist and composer
- Gérard Philipe, French stage and film actor
- Pablo Picasso, Spanish painter, sculptor and poet
- Jacques Prévert, French poet and screenwriter
- Pierre Renoir, French stage and film actor
- Muriel Rukeyser, American-Jewish poet and activist
- Armand Salacrou, French dramatist
- George Bernard Shaw, Irish playwright, critic and activist
- Dmitri Shostakovich, Soviet composer and pianist
- Simone Signoret, French film actress
- Michel Simon, Swiss stage and film actor
- Henri Wallon, French psychologist, philosopher and politician
- Harry F. Ward, English-American Methodist minister and Christian socialist
- Maria Wine, Swedish-Danish poet
- Urho Kekkonen, Finnish Prime Minister
- Vittorio Emanuele Orlando, former Italian Prime Minister
- Lázaro Cárdenas, former President of Mexico
- "Stockholm Peace Appeal". In W.E.B. Du Bois: An Encyclopedia. Gerald Horne; Mary Young eds. (2001). Greenwood Publishing Group. pp. 301–302.
- Bass, Amy (2009). Those about Him Remained Silent: The Battle Over W.E.B. Du Bois. Minneapolis: U of Minnesota Press. p. 43. ISBN 9780816644957.
- Amiard, Jean-Claude (2018). Military Nuclear Accidents: Environmental, Ecological, Health and Socio-economic Consequences. Hoboken, NJ: John Wiley & Sons. p. 195. ISBN 9781786303332.
- Eperjesi, John R. (15 April 2015). "The Unending Korean War: W.E.B Du Bois, Ko Un, and the Women's Peace Walk". HuffPost. Retrieved 18 February 2019.
- "Jacques Chirac, sabre au clair". Archived from the original on 8 June 2008. Retrieved 17 December 2011.CS1 maint: bot: original URL status unknown (link). L'Humanité. 8 May 1995 (in French).
- "Frank Marshall Davis" (PDF). Archived from the original (PDF) on 18 July 2009. Retrieved 29 December 2009.
- Gewertz, Ken (12 April 2007). "Albert Einstein, Civil Rights activist". Harvard Gazette. Retrieved 22 August 2016.
- Zecker, Robert M. (2018). A Road to Peace and Freedom: The International Workers Order and the Struggle for Economic Justice and Civil Rights, 1930–1954. Temple University Press. p. 212. Retrieved 4 March 2021.
- Jeannine Verdès-Leroux. "Qui a signé l'appel de Stockholm ?".