Stefano Fiorentino (1301 - 1350) was an Italian painter of the time of Giotto.
Born in Florence, he is mentioned in numerous literary sources, most notably the Lives of the Artists by Giorgio Vasari; other writers in whose works he appears include Franco Sacchetti and Filippo Villani. No painting of his is known with any certainty to survive.
He died in Florence in 1350.