Italian and Spanish form from Latin 'laurus' meaning 'laurel,' the ancient symbol of triumph.
Lauro is the Italian, Spanish, and Portuguese form of Laurence, tracing back through Latin Laurentius to the ancient city of Laurentum on the Italian coast, and beyond that to the laurel tree — laurus in Latin. The laurel was the sacred plant of Apollo, the god of poetry, prophecy, and the arts, and laurel wreaths were the crowns of Roman military triumphs, poetic achievement, and athletic victory. To receive a laurel crown in antiquity was the highest public honor imaginable; the word "laureate" preserves exactly this meaning, as does "baccalaureate."
The name Lauro, then, carries an embedded promise of excellence and honor. As Laurentius it entered Christian history through Saint Lawrence, the third-century deacon of Rome martyred in 258 AD under Emperor Valerian — famously, according to hagiographic tradition, with such composure that he quipped to his executioners that he was done on one side and ready to be turned over. Lawrence became one of the most beloved saints in Western Christianity, patron of cooks, archivists, and the poor.
The Spanish and Italian short form Lauro retains this sacred heritage while feeling more lyrical and less ecclesiastical than the full Latinized version. In the nineteenth and twentieth centuries, Lauro found notable bearers across Latin America and Southern Europe — the Brazilian political leader Lauro Sodré, the Mexican composer Lauro Uranga. As a contemporary given name it has that rare quality of sounding modern and antique simultaneously. In an era when parents gravitate toward names ending in open vowels (Matteo, Leo, Marco), Lauro fits naturally while still standing slightly apart, its laurel crown quietly gleaming.