Ciro Ferri (* 3 September 1633 in Rome; 13 September 1689 ibid.) was an Italian painter, draughtsman, sculptor and architect.
Ferri was a pupil of Pietro da Cortona and, after the departure of his master from Florence, completed his frescoes in Palazzo Pitti. Later he returned to Rome, where he worked as a painter and architect. There he died in 1689.
His manner is similar to that of the Cortona; roundish types, superficial colours and a bold hand characterise him.
His most extensive works are the biblical representations in the church of Santa Maria Maggiore in Bergamo. Also worth mentioning are Saint Maurus at Sant'Ambrogio della Massima and the dome paintings at Sant'Agnese in Rome, which Corbellini completed after Ferri's death.