Bonosus may refer to any of:

• Bonosus (usurper) (fl. 281), a Romano-British naval officer and usurper
• Bonosus of Trier, bishop of Trier (fl. 353-373)
• Bonosus of Naissus, bishop of Naissus (fl. 380)
• Bonosus of Sardica, bishop of Sardica (fl. 391–414), heresiarch of the Bonosians

See also

• Bonus (Sirmium) (fl. 567), a Byzantine general who defended Sirmium during a Gepid invasion erroneously recorded as "Bonosus" in some histories
• Bonus (patrician) (fl. 626), a Byzantine general erroneously recorded as "Bonosus" in some histories
• Bonus (disambiguation)