The name Antonio is a boy's name of Spanish, Italian origin meaning "priceless one". Antonio is ranked #158 on our popularity charts and is often added to lists like Werewolf Baby Names and discussed in our forums with posts like "Baby a Day".
From the experts:
Antonio is a Shakespearean favorite -- the Bard used it in no less than five of his plays, and has long been a ubiquitous classic in Spanish-speaking countries, where the nickname Tonio is also prevalent. Antonio is also among an elite group of perennially popular names in the US, where it has always been among the boys' Top 1000 since baby name record-keeping started in 1880.