Gaetano Rossi (Italian: [ɡaeˈtaːno ˈrossi]; 18 May 1774 – 25 January 1855) was an Italian opera librettist for several of the well-known bel canto-era composers including Gioachino Rossini, Gaetano Donizetti, and Saverio Mercadante in Italy and Giacomo Meyerbeer in one of his early Italian successes. Other composers with whom he worked included Simon Mayr, a composer and Donizetti's teacher, as well as the prolific Giovanni Pacini.