Īsĭdōrus (noun M) :
* Isidore, the name of several celebrated writers of antiquity, and particularly
* A geographer, Plin. 4, 4, 5, § 9.
* Isidorus Hispalensis, archbishop of Hispalis, in Spain, in the seventh century of our era, author of the XX. libri Originum.
* A cynic, who rebuked Nero, Suet. Ner. 39.
* A mime, father of Tertia, Cic. Verr. 2, 3, 34, § 78.

Male Personal name
Confirmed occurences in the Roman Empire:

• Aurelius Isidorus (Masc), ref: PIR A 1535 | PIR ID2573
• Caecilius Isidorus (Masc), ref: PIR C 0050 | PIR ID3130
• Ti. Claudius Geminus Isidorus (Masc, eques), ref: ZPE 138, 2002, 119 sq. | PIR ID4302
• Isidorus (Masc), ref: PIR I 0054 | PIR ID7111
• Isidorus (Masc), ref: PIR I 0055 | PIR ID7112
• Isidorus (Masc), ref: PIR I 0056 | PIR ID7113
• Isidorus Characenus (Masc), ref: PIR I 0057 | PIR ID7114
• Isidorus Ti. Claudius Isidorus (Masc), ref: PIR I 0053 | PIR ID7115
• Isidorus Ti. Claudius Isidorus (Masc), ref: PIR I 0053 | PIR ID7115
• Isidorus Lysias (Masc), ref: PIR I 0058 | PIR ID7116