Boys names ending in -s and -o

Adriano is a dashing Italian name which gets around the possible gender confusion of Adrian.

Andreas is a beautiful name, with the patina of an Old Master painting, one that could make a dashing namesake for an Uncle Andrew.

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.

Atticus, with its trendy Roman feel combined with the upstanding, noble image of Atticus Finch in To Kill a Mockingbird, is a real winner among boy names. Atticus entered the US Top 1000 in 2004 and is a firm Nameberry favorite.

Since Aurelius was given the supermodel seal of approval by Elle Macpherson, this is one of the Roman emperor names, like Augustus, now in the realm of possibility. Like the female Aurelia and Aurora, Aurelius has a particularly warm golden aura. 

Joyful-sounding name that makes a really original option.

Caius is classical and serious but also has a simple, joyful quality. There was a third century pope named Caius, as well as an early Christian writer, several Shakespearean characters, and a Twilight vampire. We would pronounce the name to rhyme with eye-us though at Cambridge University in England, where it's the name of a college, it's pronounced keys.

Carlos is the Spanish and Portuguese variation of Charles, which has been used in solid numbers in the US for as long as data has been kept. Carlos has never fallen out of the Top 600, but peaked from the 70s-early 2000s. Today Carlos is still within the Top 200. Notable namesakes include musician Santana, writers Fuentes and Castaneda, and numerous athletes. Carlos Irwin Estevez is the birth name of Charlie Sheen.

Charles derives from the Germanic name Karl, meaning "man" or "freeman", and is a royal name in multiple European countries. A famous early bearer is Charlemagne, King of the Franks and Lombards and then Roman Emperor in the 8th-9th centuries.

Davis is a fresh way to say David. Some sources define it as "son of David," but we see it as a surname spin on the original. While David is an everyman name, Davis has some creative edge -- and still gets you to the classic guy nickname Dave.

The energetic Diego is rising rapidly along with a lot of other authentically Spanish baby names that work perfectly well with surnames of any origin.

Strong, charismatic, and sleek, Elias has followed in the footsteps of Elijah and Eli to become a popular choice among parents today.

Elio is a sunny and spirited Italian and Spanish name that makes a great crossover prospect, which could catch on as Enzo has. Elio is also currently popular in France, ranking in the Top 250.

Emiliano and Emilio are the appealing Latinate version of Emil. Emiliano Zapata Salazar was a leading figure in the Mexican Revolution, who helped establish modern Mexico.

Dashing and popular Italian and Spanish favorite, as is Emiliano. With the popularity of girl names Emily and Emilia and of Italian names for boys, this one is sure to receive more attention.

Since this was the name chosen by the current Roman Catholic pope, Francis has come into the spotlight.

Francisco is one of the more popular Spanish names for boys in the US, which is unsurprising given its popularity back in Spain and Portugal as well as Latin America, coupled with its classic status. It also has a cool hipster vibe to it, given the reputation of the city of San Francisco.

A classic Italian name still heard in the Italian-American community. Once tainted by the association with the Spanish dictator, it's now more likely to call up actor James Franco.