What is "aphthonius"

Aphthonius may refer to:

• Aelius Festus Aphthonius, a Latin grammarian of the 4th or 5th century, possibly of African origin, and considered to be one of the most important classical rhetoricians
• Aphthonius of Antioch, Greek sophist and rhetorician, flourished in the second half of the 4th century, or even later
• Aphthonius of Alexandria, ancient bishop