The Messa per Rossini is a Requiem Mass composed to commemorate the first anniversary of Gioachino Rossini's death. It was a collaboration among 13 Italian composers, initiated by Giuseppe Verdi. The composition was intended to be performed on 13 November 1869 in the Basilica of San Petronio, Bologna, where Rossini grew up and spent a large part of his life.

The Messa da Requiem is a musical setting of the Catholic funeral mass (Requiem) for four soloists, double choir and orchestra by Giuseppe Verdi. It was composed in memory of Alessandro Manzoni, whom Verdi admired. The first performance, at the San Marco church in Milan on 22 May 1874, marked the first anniversary of Manzoni's death.