Serrānus | Sarānus (noun M) : (also , e. g. SEX. ATILIVS M. F. SARANVS, Inscr. Orell. 3110; hence, to be derived from Saranum, an Umbrian city)
* A surname (agnomen) of C. Atilius Regulus, who was summoned from the plough to the consulship, Plin. 18, 3, 4, § 20; Val. Max. 4, 4, 5; Verg. A. 6, 844; Claud. in Ruf. 1, 202; id. IV. Cons. Hon. 414.—Of other Atilii, Cic. Sest. 33, 72; id. Planc. 5, 12; id. Q. Fr. 3, 8, 5 al.

Male Personal name
Confirmed occurences in the Roman Empire:

• Atilius Serranus (Masc), ref: PIR A 1308 | PIR ID2221
• C. Atilius Serranus (Masc, senator), ref: AE 1997, 1776 | PIR ID2222
• Nonius Asprenas Calpurnius Serranus (Masc, senator), ref: PIR N 0125 | PIR ID9643
• Serranus (Masc), ref: PIR S 0548 | PIR ID12279
• Serranus (Masc), ref: PIR S 0550 | PIR ID12280
• Serranus (Masc), ref: PIR S 0549 | PIR ID12281