The gens Orfidia was a minor plebeian family at Rome. Only a few members of this gens occur in history, but others are mentioned in inscriptions. The most illustrious of the Orfidii was probably Publius Orfidius Senecio, consul suffectus in AD 148.[1][2]
The nomen Orfidius appears to belong to a class of gentilicia formed from other names using the suffix -idius.[3] In this instance, the name was probably formed from the nomen Orfius, or perhaps the cognomen Orfitus, both of which are probably derived from the Oscan cognate of the Latin Orbus, a waif or orphan.[4][5]