Lieutenant-General Charles Nicolas Victor Oudinot, 2nd Duc de Reggio (3 November 1791 in Bar-le-Duc – 7 June 1863 in Bar-le-Duc), the eldest son of Napoleon I's marshal Nicolas Oudinot and Charlotte Derlin, also made a military career.
He served through the later campaigns of Napoleon, 1809–1814, and was promoted to major in 1814 for gallant conduct.
Unlike his father he was a cavalryman, and after retirement during the early years of the Restauration held command of the cavalry school at Saumur (1822–1830) and was inspector-general of cavalry (1836–1848).Oudinot is chiefly known as the commander of the French expedition that besieged and took Rome in 1849, crushing the short-lived revolutionary Roman Republic and re-establishing the temporal power of Pope Pius IX, under the protection of French arms.
His brief published account presents the French view of the events.