User-created list
Begins or Ends with O
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Orion
Greek
"boundary, limit"
Orion is a rising star, with both mythical and celestial overtones. The Greek mythological Orion was the legendary hunter who pursued the seven daughters of Atlas, was slain by the goddess Artemis,…
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…
Ricardo
Portuguese and Spanish variation of Richard
"dominant ruler"
Richard is far from fashionable, but Ricardo is one of the most popular Spanish names for boys in the US. And it does sound far more appealing that the English version.
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…
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…
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…
Oakley
English
"oak wood or clearing"
As sturdy as Oak, but with stronger roots as a first name, Oakley ticks lots of boxes for modern trends. With its unisex vibe, its nature-based meaning, its surname-y feel, and its popular -lee…
Rocco
Italian from German
"rest; rook, crow; roar"
Cool and edgy meets sunny and beachy with this charming Italian option that might be more timeless than you think. Borne by St. Rocco, the 14th-century patron of the sick, known for helping those…
Alessandro
Italian variation of Alexander
"defending men"
For anyone seeking a more unusual version of Alexander, this is a real winner. Notable namesakes include the great Italian opera composer Scarlatti and the influential physicist Alessandro Volta,…
Odin
Variation of Óðinn, Old Norse
"god of frenzy; poetic fury"
Odin is the name of the supreme Norse god of art, culture, wisdom, and law — who was handsome, charming, and eloquent into the bargain. The name projects a good measure of strength and power and has…
Alonzo
Italian diminutive of Alphonso
"noble, ready"
Alonzo is dashing and debonair, with a large measure of Latin flair. You may be surprised to know that Alonzo has been on the Most Popular list since 1880, when such records began to be kept, at…
Ozzy
Pet form of Oswald, Osborn, Osmond or Oscar, English
"divine; deer"
Cute but cool, fresh but familiar, Ozzy was one of the fastest-rising boy names of 2021 and has continued to rise in the US and the UK ever since. While hard-core rocker Ozzy Osbourne might not be…
Maximo
Spanish variation of Maximus, Latin
"greatest"
With the ubiquitous Max heard at every playground across the US, international versions have been gaining traction in an attempt to provide a fresh avenue to the highly sought nickname. This Spanish…
Gustavo
Latinate variation of Gustav
Well used in the Latino and Italian-American communities.
Arturo
Spanish, Italian and Portuguese form of Arthur, Celtic
"bear"
Italian, Portuguese and Spanish variation of Arthur that makes the original feel more romantic and dashing.
Kenzo
Japanese
"strong and healthy"
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…
Benicio
Spanish
"blessed"
Softer than Benedict, less popular than Benjamin, and bolder than Bennett, Puerto Rican actor Benicio Del Toro introduced this name to the American mainstream in the early 2000s, before which the…