Augustin-Joseph de Mailly (5 April 1708, Villaines-sous-Lucé – 25 March 1794, Arras) was a French general, governor and nobleman.Augustin-Joseph de Mailly was marquis d'Haucourt and baron of Saint-Amand. In January 1744 he inherited the title of count of Mailly following the death of his cousin Louis de Mailly (1723–1743).