Giacomo Antonio Perti was an Italian Baroque composer from Bologna, active from the 1680s through the mid-18th century and working in both sacred and secular genres such as operas, cantatas and liturgical music. His output combines conservative liturgical polyphony with concertato and operatic influences typical of the late Baroque, and he spent much of his career producing a large body of sacred works while holding long-term posts in Bologna that shaped the city's musical life.