Lĕōnĭdas | Lĕōnĭda (noun M) : (nom. , Just. 2, 11, 2), , , = Λεωνίδας.
* A king of Sparta, who fell at Thermopylae, Cic. Fin. 2, 30, 97; 2, 19, 62; id. Tusc. 1, 42, 101; 1, 49, 116; Nep. Them. 3.
* The name of a slave, Plaut. As. 1, 1, 43 al.; v. also Leonides.

Male Personal name
Confirmed occurences in the Roman Empire:

• Leonidas (Masc), ref: PIR L 0147 | PIR ID8257
• Ti. Iulius Leonidas (Masc), ref: PIR I 0378 | PIR ID13235