Yvonne Jospa (née Have Groisman, February 3, 1910 in Poputi, Bessarabia – January 20, 2000 in Brussels) was a cofounder and leading organizer of the Comité de Défense des Juifs in September 1942 with her husband Hertz Jospa, which saved over 3,000 Jewish children from deportation and death.
Born in a well-to-do Bessarabian Jewish family, Groisman attended the Jewish gymnasium in Chişinău (present-day Moldova), coming to Belgium with the intention to study at the University of Liège, in the Philosophy and Letters section.
In 1933 she married Hertz Jospa, and they both became activists, first in the Belgian Communist Party, then in 1936 in the anti-racism organisation Ligue contre le racisme et l'antisémitisme, the Belgian section of the Ligue internationale contre l'antisémitime.
She took part in hosting child refugees from the Spanish Civil War and in arranging secret passage through Belgium of volunteers for the International Brigades.
She was made an honorary member of the L'Enfant Caché association ("The hidden child").