Domenico Mazzocchi (1592 – 21 January 1665 in Veja, now ?Vejano, baptised in nearby Cività Castellana, in Lazio region's Viterbo Province) was an Italian Baroque composer of only vocal music, of the generation after Claudio Monteverdi.
He is associated with providing music for the popes, particularly Cardinal Maffeo Barberini, later Pope Urban VIII, until Domenico's death in Rome on January 21, 1665.
His younger brother, Virgilio Mazzocchi, was a less notable Roman composer and had a similar career as a Vatican music provider.
- La catena d'Adone (1626)
- L'innocenza difesa
- Madrigali a 5 voci in partitura (1638), madrigals which have Basso continuo, similar to the late Monteverdi; these contain the first notations, as explained in the preface, of the persisting conventional musical symbols < 'crescendo', > 'decrescendo', p(iano), f(orte) and tr(illo)
- various oratorios
- church music, notably motets
- Entry under Domenico Mazzocchi in the Grove Dictionary of Music and Musicians.
- Entry under Mazzocchi, Domenico & Virgilio, in the Concise Baker's Biographical Dictionary of Composers.
- Cardinali A., 1926, Cenni biografici di Domenico e Virgilio Mazzocchi.