Pierre-Marie Dioudonnat

Pierre-Marie Dioudonnat (; born 24 March 1945 ) is a French publisher, historian and political scientist.

Trained in prosopography, he specialises in family history. His name is closely associated with the Encyclopédie de la fausse noblesse et de la noblesse d'apparence, republished in 2002 and 2010 as Le Simili-nobiliaire français, which gathers data on 6,000 surviving French families whose present-day surname links to a false title of nobility.

Life He was born in Neuilly-sur-Seine. He gained a diploma from the Institut d'études politiques de Paris in 1965 and in 1972 added a doctorate in political science

He stood for the National Front as a successor to Alexandra Bourgoin in the 8th 'circonscription' for Seine-Saint-Denis (93). His wife is Sabine Bragadir, with whom he wrote Dictionnaire des 10 000 dirigeants politiques français. Sedopols, 2008 La France allemande et ses journaux : Scènes et coulisses de la Collaboration 1940-1944, Paris, Les Belles Lettres, 790 p., 2025

Prizes Prix Robert-Brasillach 1974.