Giovanni Battista Fiorini was an Italian painter of the late Renaissance period.
He was a native of Bologna. He was active at the close of the 16th century, and died after 1595. He is chiefly known as a coadjutor of Cesare Aretusi, with whom he painted several pictures at Bologna and Brescia, and distinguished himself especially as a good designer. Among his works:
This article incorporates text from a publication now in the public domain: Bryan, Michael (1886). "Fiorini, Giovanni Battista". In Graves, Robert Edmund (ed.). Bryan's Dictionary of Painters and Engravers (A–K). Vol. I (3rd ed.). London: George Bell & Sons.