Names Ending in O for Boys

A romantic choice, this appealing <a href="https://nameberry.com/baby-names/806/spanish-names-for-boys">Spanish name for boys</a> is both accessible and distinctive.

Amado

Stalwart Italian classic, completely at home in this country. 

Gino

An operatic Italian option via South Pacific star Pinza, one of several Italian names currently hot in France. Ezio is the Italian form of the Greek name Aetius. 

 Zoe Saldana and Marco Perego Saldana gave the name as a middle to one of their twin sons, after his paternal grandfather.

Ezio

The most popular of the number names used by Hispanic parents, open to all. Octavia and Octavio are two <a href="https://nameberry.com/baby-names/161/spanish-names">Spanish baby names</a> that are moving out into the wider world.

Octavio

Variation of the popular religious name, boosted by megastar Portuguese footballer Cristiano Ronaldo.

Cristiano

Rakish nickname able to stand on its own. 

Renzo

Makes a Biblical favorite new and interesting.

Danilo

Nico is a fun and lively nickname, full of charm, and suitable both as a full name and a short form. Nikko is a unique spelling that currently sits just outside of the US Top 1000.

American rapper and singer Ashnikko, whose full name is Ashton Nicole, might help this variant feel more familiar.

Nikko

About 100 baby boys were named Lucio in the US last year, a number we expect to increase with the growing popularity of all names in the Lu family. It's a family united by sound, with three main branches. 

Lucio belongs with the light-meaning names such as Lucius, Lucy, Lucia, and Lux. Then there is the Luke, Lucas, and Luca names that mean "man from Lucanus." Both these branches are rooted in the Latin.

Louis, Louise, Luis, and Louisa have French and German roots and mean "renowned warrior".

Pronunciation of Lucio differs according to country. Spanish and Portuguese speakers pronounce the c like an s and may emphasize the first or the second syllable, depending on country. So the options are LOO-see-oh or loo-SEE-oh.

Italians pronounce the c like the English ch and pronounce the name with only two syllables: LOO-cho.

Lucio

Thanks to the inspiration of Pope Francis, Francesco has galloped to the front of the line to become the Number One boys' name in Italy.  As Francesca has become a familiar and popular form of the name for girls in the wider world, so does the handsome Francesco have that potential for boys.

Francesco

In its original form, Shiloh is a soft unisex name, with connections to both the Bible and American history. While it is often associated with Angelina Jolie and Brad Pitt's daughter, born in 2006, Shiloh ranks in the US Top 500 for girls and boys.

Shilo is a simpler, streamlined version, perhaps influenced by other popular -o boy names, like Arlo and Milo.

Shilo

This Latinate form of Bernard hovered in the lower regions of the US Top 1000 from the late 1940s until 2006, possibly inspired by the character in West Side Story. It remains popular in Portugal and it does have a little more flair than the grandpa style Bernard.

Bernardo

Rolando, along with brother name Orlando, are among the most attractive and appealing of Latinate names. It has been in the US Top 1000 every year since 1946.

Rolando

With the woodsy, Shakespearean vibes of the original Lysander, but with the flair and familiarity of Alessandro, Lorenzo, and Orlando too, Lisandro might feel more wearable than the original Greek name. Out of style in Spanish-speaking countries, but on the rise in France, Lisandro also saw a spike in usage in the US in 2023, perhaps thanks to the Argentine professional, Lisandro Martinez who plays for both Manchester United and the Argentina national team. Given to 126 babies - double the number registered in 2021 - Lisandro could catch on, especially with Leandro climbing up the charts. 
 However, if the Nameberry popularity charts reflect current and future name trends, then it will be the original Lysander that will become a favorite.

Lisandro

Popular in the Hispanic community, unlike its English cousin. It has been very near the bottom of the US Top 1000 for the last three years.

Osvaldo

Popular among Hispanic parents, it explains the source of the nickname Gonzo. 

Gonzalo

In Italy, a common melding of two popular names, heard in the US as well.
 Giancarlo Stanton is a power-hitting right fielder for the New York Yankees. Side note: when he first joined the leagues, he went by Mike — one of his middle names is Michael — a hangover from when his schoolmates had trouble saying "Giancarlo". Another famous bearer is actor Giancarlo Esposito.

Giancarlo

A Portuguese classic, typically spelled with a tilde over the A. Many members of the Portuguese royal family were named João, and today it’s associated with a number of Portuguese and Brazilian footballers.

Joao

Romanticizes Rudolph and distances the name from the red-nosed reindeer. After remaining steadily in the US Top 500 for much of the twentieth century, Rodolfo has been slipping of late.

Rodolfo

Mauro, a Top 100 name in Spain and Puerto Rico, is etymologically unrelated to the girls' name Maura, but that won't stop many English speakers from drawing the comparison.

Mauro

Boy names ending in O offer many intriguing options, from such top names as Theo to unique O-ending names from Kylo to Zino.

Mateo is the most popular boy name ending with O

 right now, though there are nearly 100 O-ending boy names among the US Top 1000. Along with Mateo, other boy names in the US Top 1000 include Leo, Santiago, Diego, Romeo, and Antonio.

unique names for boys that end with the letter O

 worthy of your consideration. These range from the biblical Jethro to the ancient Greek Cosmo to the cool, modern Rio and Po.



Here are all Nameberry’s boy names that end with the letter O, ordered by their current popularity on Nameberry.

Baby boy Names ending in the letter O, with meanings, origins, and popularity, including top boy names that end in O such as Milo and Kylo along with unique O-ending names such as Quinto. (Page 6)

1770+ Boy Names Ending in O