Male Personal name
Confirmed occurences in the Roman Empire:

• Ingenuus (Masc, senator), ref: PIR I 0023 | PIR ID7077
• C. Iulius Ingenuus (Masc, senator), ref: PIR I 0359 | PIR ID7549
• Ofillius Ingenuus (Masc, eques), ref: PIR O 0086 | PIR ID9868
• C. Oppius Ingenuus (Masc), ref: PIR O 0120 | PIR ID9903
• Sempronius Ingenuus (Masc, eques), ref: PIR S 0356-- | PIR ID12074
• Q. Terentius Ingenuus (Masc), ref: III 4359 | PIR ID12977