René Lefebvre, French businessman (b. 1879)
René Charles Joseph Marie Lefebvre (23 February 1879 – 4 March 1944) was a French factory-owner from Tourcoing, who died in the German concentration camp in Sonnenburg, in the Province of Brandenburg (today in Lubusz Province in western Poland), where he had been imprisoned by the German Gestapo because of his work for the French Resistance and British Intelligence. René Lefebvre was the father of French Roman Catholic archbishop Marcel Lefebvre, the founder of the international Traditionalist Catholic organisation Priestly Fraternity of Saint Pius X (SSPX).