Lucio is the Italian and Spanish form of the Roman name Lucius, which comes from the Latin lux and means "light"; it was traditionally given to children born at dawn. The name is common in Italy, Spain and Latin America, and in the United States it is mostly used in Hispanic and Italian American families. Lucio stood at number 1457 in 2000, peaked at number 1297 in 2001 and has returned to number 1326 in 2025 after a decade in the 1500s and 1700s.