Antonio Fantuzzi was an Italian painter and printmaker active in the French Renaissance in a Mannerist style. All that is known about his early life is that he was born in Bologna, from the accounts at Fontainebleau and one inscription on a print.
He is recorded as a painter of the First School of Fontainebleau from 1537 into the 1540s, at first on "modest wages", but from 1540 better paid, and apparently a principal assistant to Francesco Primaticcio, who had taken charge of the "school" decorating the Palace of Fontainebleau after the suicide in 1540 of Rosso Fiorentino. Primaticcio was also Bolognese, and may well have summoned Fantuzzi to France in 1537, although he may well have only completed his training in France. He became a leading member of the printmaking workshop at Fontainebleau and nearly 100 etchings survive, 16 dated between 1542 and 1545. Most copy designs by Rosso, Giulio Romano, or Primaticcio. He is last recorded at Fontainebleau in 1550.