In Roman mythology, Favonius ("favorable") held dominion over plants and flowers. He was generally equated with the Greek Zephyrus.
Favonius was also a Roman nomen.
- Marcus Favonius, praetor 49 BC
- Favonius Eulogius, rhetor of Carthage contemporary with Saint Augustine, wrote a Disputatio de somnio Scipionis
- Marcus Favonius Facilis, a centurion of Legion XX who died in Britain and whose tombstone is displayed in Colchester museum Photo of tombstone
No doubt inspired by the tombstone, the computer game Dark Ages of Camelot features a powerful undead monster named Favonius Facilis.