Louis-Étienne François Héricart-Ferrand, vicomte de Thury (Paris, 3 June 1776 – Rome, 15 January 1854) was a French politician and man of science.
He was a mining engineer who produced more than 350 scholarly articles; was a member of numerous societies and professional associations.
His family were of the noblesse de robe, his father a master councillor at the Cour des Comptes.
He was listed among the four hundred founding members of the Société d'horticulture de Paris, 11 June 1827.
He was a prime mover of the purchase of the Palais Bourbon, seat of the Assemblée Nationale, by the French government in 1827.