Adelaide Orsola Appignani was an Italian singer, conductor, music educator and composer. She was a singer and conductor in Florence and Rome in 1839. She was a member of the Roman Academie Filarmonica at Pallazio Lancelotti and was granted an honorary membership in 1842 of the Academie de St. Cecelia. Appignani also taught singing, and one her students was notable tenor Settimio Malvezzi.