Antoine Alexandre Barbier (11 January 1765 – 5 December 1825) was a French librarian and bibliographer.
In 1794 he became a member of the temporary commission of the arts, and was charged with the duty of distributing among the various libraries of Paris the books that had been confiscated during the French Revolution.
In the execution of this task he discovered the letters of Huet, bishop of Avranches, and the manuscripts of the works of Fénelon.
He became librarian successively to the French Directory, to the Conseil d'Etat, and in 1807 to Napoleon, from whom he carried out a number of commissions.
[1] He produced a standard work in his Dictionnaire des ouvrages anonymes et pseudonymes (4 vols., 1806—1809).