Apphia was a Christian woman associated with Philemon’s household at Colossae. She was probably Philemon’s wife and was greeted with Philemon and Archippus.
Paul addressed Apphia in the letter to Philemon, calling her a Christian member of the household and, in the supplied material, a sister.
Her precise relationship to Philemon and Archippus is uncertain, though she is generally considered a member of Philemon’s household.