1770+ Boy Names Ending in O

A spirited German name very popular in Italy and occasionally used here, Aldo is one of the unique baby names with international flair. And names that mean wise have an enduring appeal.

The o ending and the positive meaning in many languages makes this a winner, and with the feminine Vera making a surprise return, and the new love for the letter 'V', this becomes a name that has definite possibilities.

With Mateo making its first ever appearance in the US Top 10 in 2023, its Scandinavian variant Matheo borrowed some of its spotlight and appeared in the Top 1000 for the first time.

Italian, Portuguese and Spanish variation of Arthur that makes the original feel more romantic and dashing.

Japanese name common among older generations.

More creative and artsy than Mario. Dario is starting to edge up the US popularity list after languishing near the bottom of the Top 1000 over the last four decades. Is that inspired by Dario's popularity in Italy, Spain, Germany, and Switzerland?

Widely heard in both Italian and Spanish households, Sergio and his many international brothers are rooted in Sergius, one of the original Roman family names. The meaning is unknown, but possibly is related to servant or protector.

More familiar to English speakers in the Italian Elio form.

Oslo, the capital city of Norway, makes for an intriguing new place name, especially with its bookended O's, as in Otto. One Berry has already used it and we predict others will follow.

Lito is an onomatopoeia of a name: a name that sounds like what it means. A modern bearer is Lito Sheppard, Philadelphia Eagles cornerback. Lito might also be a short form of such names as Carlito and Ippolito.

Pablo, the commonly used Spanish version of Paul, has the added bonus of some fantastic artistic bearers: painter Picasso, cellist Casals, and poet Neruda. Pablo has been consistently in the US charts since records began, and has been within the Top 500 since the mid 60s. However, Pablo has never cracked the Top 200, making it familiar but not overused or tired.

Tiago, also spelled Thiago, is a popular Portuguese boys' name derived from the more formal Santiago but these days usually used on its own. English speakers won't intuitively get the pronunciation but this might be a creative way to honor an ancestral James or Diego.

Sholto is a traditional Scottish first name, especially within the Douglas clan. It's an Anglicized form of Sìoltach, meaning "sower".

Malo, the name of an important sixth century Breton saint who founded St. Malo, the charming port town in Brittany -- is considered quite au courant in France right now, ranking firmly in the Top 100.

For anyone seeking a more unusual version of Alexander, this is a real winner.

Milo, Miles and even Myles are all well-known in the US, but the spelling Mylo is not widely used here though it ranks among the British Top 1000 names for boys. However you spell it, a friendly, jaunty name with authentic roots.

Maro is an ancient saints' name -- he was an Italian follower of St. Flavia and was martyred -- rarely used in modern life. The name Maro may stem from the Roman Marcellus, related to Mars, the god of war, or it may be a feminine form of Maria, connected with Mario. Maro is also a Japanese name meaning "myself."

Tayo, also written as Táyò in Yoruba, is a name that sounds as joyful as its meaning.

Roman statesman's name with a cool and quirky sound. Marcus Tullius Cicero was a Roman scholar, orator and lawyer who had an immense impact on the Latin language.

Well used in the Latino and Italian-American communities.