Boy Names Lists · Name Spellings, Initials and Sounds
Best Boy Names Ending in O
Across 10 pages
of 10
The names
Luciano
Italian, Spanish, and Portuguese variation of Lucian
"light"
A vibrant, operatic choice with plenty of flair and plenty of familiarity too. Popular in Italy, Chile, Uruguay, and Brazil, it also ranks in the Top 500 in France and the US. Operatic tenor Luciano…
Francisco
Spanish, Portuguese
"free man"
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.…
Francisco
Spanish, Portuguese
"free man"
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.…
Cairo
Egyptian place-name, Arabic
"the conqueror, the victorious"
Cairo is an exciting place name possibility with upbeat o ending and an on-trend first syllable. Debuting in the US Top 1000 in 2015, it has been climbing ever since, and, as of 2023, it is given to…
Santino
Italian
"little saint"
A name introduced here by The Godfather: James Caan played the anything-but-saintly Santino "Sonny" Corleone, and comedian Adam Carolla used it for his son.
Santino
Italian
"little saint"
A name introduced here by The Godfather: James Caan played the anything-but-saintly Santino "Sonny" Corleone, and comedian Adam Carolla used it for his son.
Marco
Italian and Spanish form of Mark
"warlike"
Simple and universal, Marco is a Latin classic that would make a much livelier namesake for an Uncle Mark. It was used for her son by actress Jill Hennessy and goes well with surnames of any…
Hugo
Latinized form of Hugh
"mind, intellect"
Hugo, the Latin form of Hugh, has more heft and energy than the original -- and of course we love names that end (or begin, for that matter) with an o. This one is especially appealing because it's…
Fernando
Spanish and Portuguese variation of Ferdinand
"bold voyager"
Can you hear the drums Fernando? Although 58% of Nameberries prefer Ferdinand to Fernando, the Iberian variant has a softer, more romantic feel that makes it a better fit with all those Javiers,…
Elio
Italian, Spanish
"sun"
Elio is a sunny and spirited Italian and Spanish name that makes a great crossover prospect, which could catch on as Enzo has. Derived from the Roman Aelius and the Greek Helios, it has an appealing…
Marcelo
Spanish and Portuguese variation of Marcellus, Latin
"little warrior"
Elegant but upbeat, Marcelo has steadily climbing up the US Top charts since the mid-90s. Also popular in Spain, Uruguay, Chile, and Mexico, it ranked in the US Top 500 for the first time in a recent…
Kylo
Variation of Kyle, Scottish
"narrow spit of land"
The original Kyle has sparked many variations, including Kylie, Kyler, and Kylo, after Kylo Ren, the villain played by Adam Driver in the seventh Star Wars movie, released in December 2015. .Kylo,…
Leandro
Spanish, Portuguese, and Italian variation of Leander
"lion-man"
Leandro is a variation of the Ancient Greek name Leander, created by combining the Latin words leo and Andro together, to get a meaning that suggests strength, power, and bravery. The Hero and…
Eduardo
Spanish and Italian variation of Edward
"wealthy guardian"
A stalwart of Latin nomenclature that could work just as well for Anglos. Proof lies with the celebrity birth announcement — Hilaria and Alec Baldwin named their fifth child Eduardo Pau Lucas in…
Tadeo
Spanish variation of Thaddeus
Has a lot of energy and charm, as does the Italian form, Taddeo.
Pablo
Spanish variation of Paul
"small"
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…
Mario
Italian variation of Marius, form of mythological name Mars
"warlike"
Many may associate Mario with the popular platform game - unsurprising when it's the 5th best-selling video game worldwide, and was voted the 2nd best game ever by IGN in 2024. The titular plumber…
Sergio
Italian and Spanish variation of Sergius, Roman family name
"servant"
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…
Valentino
Latin
"strength, health"
A dashing, dramatic and romantic Italian surname, associated with early movie heartthrob Rudolph, and later with Italian fashion designer Valentino (Garavani). Also the name of an early Roman saint,…
Apollo
Greek mythology name
"destroyer; strength; father's light"
With mythological names rising, the handsome son of Zeus and god of medicine, music, and poetry among many other things might offer an interesting, and melodic option. Similar in style to Atlas and…