Yvon Delbos (7 May 1885 – 15 November 1956) was a French Radical-Socialist Party politician and minister.

Delbos was born in Thonac, Dordogne, Aquitaine, entered a career as a journalist, and became a member of the Radical-Socialist Party. He subsequently served as Minister of Education (1925), Minister of Justice (1936), and notably as Minister of Foreign Affairs in the Popular Front governments of Léon Blum and Camille Chautemps.

In January 1937, unveiling a war memorial at Chateauroux, M.Delbos, in reply to Hitler's Reichstag speech of the previous day, emphasised the need for Franco-German understanding and for both countries to find new markets so that industrial expansion might replace rearmament. After representing France at the Nine-Power Conference at Brussels on November 3, M.Delbos expounded French Foreign Policy in a debate in the Chamber on November 18–19, emphasizing Anglo-French friendship and the necessity for its maintenance. Ten days later he visited London with Chautemps to receive a report from Neville Chamberlain and Anthony Eden on the result of the Halifax-Hitler talks. Afterwards, he set out on a tour of the central and eastern European capitols, visiting Warsaw on December 3, Bucharest on December 8, Belgrade on December 12, and Prague on December 15, in each case discussing the European situation with the ministers of the countries in question, and seeking to foster friendly relations with France.