1770+ Boy Names Ending in O

Popular in its own right in Germany and definitely makes a more intriguing and grownup short form of the classic Timothy than Timmy or even Tim.

Contemporary Kairo fits in with the modern trend of substituting a C for a K initial, and in this case, it works to get you more easily to the cool nickname Kai. In fact, parents in the US and the UK see it as working so well that Kairo took over from Cairo as the preferred spelling of the name back in 2018. Given to nearly 1500 babies each year, Kairo is in the US and UK Top 300.

Leto Atreides is the father of protagonist Paul of the Dune franchise. Other parents may use this name for its connection to actor and musician Jared Leto.

This classic yet poetic Italian name for boys, is a Top 50 choice in its native Italy, and has been climbing up the charts in the US and the UK too. It had sporadically made the US charts throughout the 20th century, but it has been consistently present since 2009.

Softer and smoother than Alexander, this classic Spanish name for boys has made a seamless transition to this culture. Adding to its current impact: the Lady Gaga song Alejandro .

Vigo is both an Italian and Spanish surname and a Scandinavian first name. As a place name, it's found in Spain, Italy, England – and Indiana.

The name of the great Renaissance astronomer and mathematician would make a distinctive hero-middle-name for the son of parents involved in those fields.

Orlo is a name nobody ever heard of until the surprise popularity of the unrelated but similar-sounding Arlo. If Arlo can be a hit, why not Orlo? Why not indeed.

Names ending with O are popular, but this one is almost unheard-of. Faro has the advantages of being easy to spell and pronounce (unless it's confused with Pharaoh), and a bright meaning. Ultimately it comes from Pharos, the island where the great Lighthouse of Alexandria was built, and there's a district and city in Portugal called Faro. Be aware: it's also the name of a gambling card game, highly popular in the nineteenth century before poker took over.

Although this is traditionally seen as a female name, via the classical mythological nymph who pined away for Narcissus until all that remained of her was a disembodied voice — it can also be used for boys. Remember that old song, 'Little sir echo, how do you do?'

Finlo is a name from the Isle of Man, deriving from that island's pagan sun god, Lugh. Given the popularity of all Finn names right now, Finlo could be a great alternative for people who love the "Fin" sound but want a more unusual name.

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.

Akiro is well used in Japan, the first name of famed director Kurosawa.

Diogo is the much-less-known brother of Diego, both forms of James, which is itself a form of the Biblical Jacob. And Diego itself probably started life as a short form of Santiago, aka Saint Jago, aka Saint James.

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.

This alternative spelling of Leo is popular with German-speaking parents. It's rare in English-speaking areas, which could be a burden, but the advantage is that it could be short for (or honor) a name such as Julio or Lionel.

So much more worldly than Danny.

A nature name from the Hawaiian islands that's vaguely reminiscent of trendy names like Luke and Luca. However, it's also the name of a Swedish company that makes mechanical lifts used in medical settings to move mobility-impaired patients.

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.

Alonso is the Spanish and Portuguese diminutive version of Alfonso, itself deriving from an old Germanic name "Adalfuns" meaning "noble and ready." Although the Italian spelling Alonzo is more popular in the US, Alonso has its own strong history.