Petrus Bonus Lombardus was a supposed fourteenth century physician at Ferrara, and writer on alchemy. He is best known for the attribution to him of Margarita preciosa novella, from around 1330, an influential alchemical text. His supposed Introductio In Divinam Chemicae Artem was much later printed (1572).
- The historical place of the writer of the Margarita preciosa novella has been disputed, under this name or Pietro Antonio Boni, perhaps at the end of the fifteenth century; see .
- The Precious New Pearl, often The New Pearl of Great Price.
- Aldine edition 1546, by Janus Lacinius (Giovanni or Giano Lacinio), a Calabrian.