Dĭŏdōrus (noun M) : Διόδωρος.
* A Peripatetic philosopher, a pupil of Critolaüs, Cic. Fin. 5, 5; id. Ac. 2, 24; id. Tusc. 5, 30 sq.
* A famous dialectician, Cic. Fat. 6; Plin. 7, 53, 54, § 180.
* Siculus, a well-known historian of the time of Augustus. His work, entitled Βιβλιοθήκη, of which a portion is still extant, is mentioned by Plin. H. N. praef. § 25; Lact. 1, 13, 8.

Male Personal name
Confirmed occurences in the Roman Empire:

• M. Aurelius Cornelianus Zeno Diodorus (Masc, senator), ref: I. Perge 201 | PIR ID2499
• Claudius Severus qui et Diodorus (Masc, eques), ref: P. Köln 143 | PIR ID4497
• Diodorus (Masc), ref: PIR D 0094 | PIR ID5325
• Diodorus (Masc), ref: PIR D 0095 | PIR ID5326
• Septimius Diodorus (Masc, eques), ref: PIR S 0448 | PIR ID12168
• C. Servilius Diodorus (Masc, eques), ref: AE 1998, 282 | PIR ID12320
• Valerius Diodorus (Masc), ref: RE 5, 1 (1903) 708 s.v. Diodoros 46 | PIR ID13819

s. TLL