Best Boy Names Ending in O

It wasn't so long ago that Romeo was considered as outre for an American baby as Casanova or Cupid. But that really changed when David and Victoria Beckham chose it for their second son in 2002, a path followed by Jon Bon Jovi.

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.

A biblical place name with trumpeting verve and strength.

Santiago is a spirited Spanish name with great crossover potential. It's a place-name (a city in Chile), a surname, and the name of the patron saint of Spain.

Madonna did much to polish up the image of this old-neighborhood Italian choice when she picked it for her son with British director Guy Ritchie, and several years later it was also used by Rose Byrne and Bobby Canavale for their son. It now feels much more mainstream than many celebrity baby names, sharing the quirky appeal of some other so-far-out-they're-in baby names as Bruno and Hugo.

Cato conjures up images of ancient Roman statesmen and southern antebellum retainers; it could have revival potential, with its 'O' ending and the current interest in the names of Greek and Roman antiquity.

Winston meets Marlow in this surname-style choice, blending old-fashioned charm and a hint of stuffiness with a bit of modern edge and breeziness too. Borne by the distinguished American landscape painter Winslow Homer, it could make a creative and unexpected choice, though some may be put off by the 'slow' ending.

Rio is a reductive ranchero place-name with an attractive Tex-Mex lilt. No Doubt's Tom Dumont has a son named Rio Atticus.

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.

Dashing and suave, with a hint of poetry and gentleness, Emilio is an appealing and international choice. A solid favorite in Italy, it is also on the rise in the US, France, Austria, and the UK.

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 nationality.

Jethro, though the biblical father-in-law of Moses, has suffered for a long time from a Beverly Hillbilly image, but some really adventurous parents might consider updating and urbanizing it and transitioning it into the hip o-ending category.

For centuries this name was associated primarily with the towering figure of Italian Renaissance painter-scientist-inventor Leonardo da Vinci, and was scarcely used outside the Latin culture.

This nouveau name of Keanu Reeves's character in The Matrix has not enjoyed the same burst of popularity as its female counterpart, Trinity, but it definitely sounds, well, newer. Neo Rauch is an interesting contemporary German artist.

Orlando, the ornate Italianate twist on the dated Roland, with a literary heritage stretching back to Shakespeare and before, has appealing book-ended o's, and is open to combination with almost any last name, a la British actor, Orlando Bloom.

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 more than 1000 babies each year.

Kenzo is a common Japanese name with several creative bearers: the single-named fashion designer, prizewinning architect Kenzo Takada, and painter Kenzo Okada, which makes it internationally recognizable.

Inigo, almost unknown in the U.S., is an intriguing choice, with its strong beat, creative and evocative sound, and associations with the great early British architect and stage designer Inigo Jones. The sixteenth-seventeenth century Jones shared his name with his father, a London clockmaker, who received it when Spanish names for boys were fashionable in England, especially among devout Roman Catholics.

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 Leander myth lends the name a romantic, poetical feel, while it's association to Bishop Leander of Seville gives it a more saintly quality.

Rugged but gentle, Sholto is a traditional Scottish first name, especially within the Douglas clan, with Sholto Douglas being its mythical ancestor. It is an Anglicized form of Sìoltach, meaning "sower".