Antonio Masini

Antonio Masini (probably Rome, c. 1639 - Rome, 20 September 1678) was an Italian composer and performer active in Rome during the second half of the seventeenth century. His birthplace is not documented with certainty, although he is usually assumed to have been born in Rome.

He worked at the Roman court as a chamber musician in the service of Queen Christina of Sweden. On 1 May 1674 he was appointed maestro di cappella of St Peter's, a post he held until his death. In the Holy Year of 1675, a series of eight of his oratorios was performed at the Oratorio della Pietà, at the church of San Giovanni dei Fiorentini; only La morte di Saul survives. He also composed the opera L'Eumene, premiered in Ferrara in 1666, which is now lost.

Alongside Stradella, he was one of the first composers to apply the technique of the concerto grosso to the accompaniments of his oratorios. A dozen cantatas and a number of sacred pieces are preserved in Italian libraries, which allows his contribution to the music of Rome in his time to be assessed.