Dario is a masculine given name used predominantly in Italian and Croatian. It is the Italian form of the name Darius, derived from the Old Persian name Dārayava(h)us, meaning 'possessing goodness' or 'he who holds firm the good'. This etymology comes from the components daraya ('to possess, to hold') and vau ('good'). Historically, the name was borne by several Persian kings, including Darius the Great, who expanded the Achaemenid Empire and whose army clashed with the Greeks at the Battle of Marathon. Etymology and Spread The name entered Western Europe through the Latinized form Darius, but Dario evolved within Romance-language contexts, particularly in Italy. In Croatian usage, Dario was likely borrowed as a variation of Darijo, popularized by the spread of Italian culture along the Adriatic coast. It remains more common in these regions than in English-speaking countries. Notable Bearers Among prominent figures named Dario are: Dario Argento (born 1940), Italian film director, a master of horror and giallo cinema. Dario Franchitti (born 1973), Scottish racing driver who won the Indianapolis 500 three times. Dario Fo (1926–2016), Italian playwright and Nobel laureate in literature. Darío Barrueto (1874–1944), Chilean businessman and politician. Popularity and Variants Globally, Dario is common in Italian and Croatian but also used in Spanish-speaking countries (as Darío). Variants include the Slavic Darijus, Persian Dariush, and Lithuanian Darijus, reflecting the name's spread. The Brazilian blend Dario (often Portuguese) aligns with its simple phonetic structure. Meaning: 'Possessing goodness' Origin: Italian form of Darius (Old Persian) Type: First name, masculine Usage regions: Italy, Croatia, and other Romance-language areas Historical association: Persian kings and modern notables