Alessandro Nelli (Rome, 28 January 1842 – Russia?, after 1897) was an Italian entrepreneur. Nelli was the founder of the Fonderia Nelli (Nelli Foundry), which was the leading sculpture foundry in Rome from 1880 to 1900. He participated to national, international and universal exhibitions, winning several prizes and medals. He exported more than 100 pieces to the 1893 World's Columbian Exposition in Chicago. Nelli made artistic bronzes for several Italian and foreign artists, including several American artists.