From Greek Leandros meaning 'lion man,' famous from the myth of Hero and Leander.
Leandro comes from the Greek Leandros, built from laos, meaning “people,” and aner/andros, meaning “man.” The old sense is often rendered as “man of the people” or “lion-man” in later folk explanations, but its classical root is more firmly tied to the idea of a man among the people. The name passed from Greek into Latin as Leander, then flourished in the Romance languages as Leandro, especially in Spanish, Portuguese, and Italian.
Its most famous ancient bearer is the mythic Leander, the lover who swam the Hellespont each night to reach Hero, a story that made the name a lasting emblem of daring devotion. Over time, Leandro has kept a literary, Mediterranean sheen. In the Spanish-speaking world it has sounded cultivated without being fragile, and in Italy and Latin America it has often felt warm, elegant, and distinctly classical.
Historical bearers include Saint Leander of Seville, the sixth-century archbishop who played a major role in Visigothic Spain, giving the name both ecclesiastical weight and Iberian prestige. Because of that blend, Leandro can suggest equal parts romance and intellect: a name of myth, church history, and modern cosmopolitan ease. Today it feels familiar in many countries but never overused, carrying old-world gravity with a melodic, contemporary finish.