Best O Names for Boys (2024)

Boy names that start with O have been getting a lot of love recently, from vintage revival Oliver to modern favorite Owen. However, there are many O names that have yet to reach the US, but which have endless potential and charm. Here are 15 outstanding O names that we would love to see get some love.

Oak

Tree names are some of the trendiest nature names today, from Rowan to Juniper to Willow. Why not Oak? This short but sturdy name feels grander than the trendy surname Oakley. Oak is a symbol of solidity, strength, and longevity — all great virtues to bestow upon a child. Surname Oakes is another cool option.

Oberon

Oberon’s colorful history includes a leading role in Shakespeare’s A Midsummer Night’s Dream and in several operas, right up to a character in Disney’s animated Gargoyles. Oberon is also one of the Shakespeare-inspired moons of Uranus, giving it some astronomical cred.

Ocean

Names that mean water are in for both girls and boys, from River to Lake to Ocean. Ocean feels chic, stylish, and makes a statement for sure. He entered the Top 1000 for the first time for boys in 2020, and for girls in 2021. Irish Oisin (pronounced "oh-SHEEN") has a similar sound, but holds the sweet meaning "little deer".

Octavian

Octavia is on the rise for girls, all the way up to number 248. Her male counterpart Octavian, meaning "eighth", has a lot of potential too. Another Latin alternative, Octavius, is the birth name of the emperor Augustus Caesar. Octavio is another attractive variation.

Odin

The supreme Norse god of art, culture, and wisdom, Odin is right on trend with its O beginning and N ending — and could follow on the heels of Owen. He’s now Number 327 in the US (by far the record high), 39 in Norway, and 188 with the Berries, making him one of the hottest mythological names.

Top O Names for Boys in the US

  • 1OliverChevron - Right
  • 2OwenChevron - Right
  • 3OscarChevron - Right
  • 4OmarChevron - Right
  • 5OrionChevron - Right
  • 6OdinChevron - Right
  • 7OttoChevron - Right
  • 8OakleyChevron - Right
  • 9OnyxChevron - Right
  • 10OmariChevron - Right

Ogden

Ogden is a rarely used English surname meaning "from the oak valley". The humorous poet Ogden Nash is the best-known namesake. Ogden charted only one year in the US, ranking at 982 in 1907.

Omri

This Hebrew name has a soft, pleasant sound. Omri means "my sheaf", related to the harvest. It is the name of a king in Israel in the Old Testament, who brought stability to the country and expanded its borders.

Onyx

We often hear complaints that there are no good flower or gem names for the boys. Well, one candidate we nominate is Onyx, with its dynamic and powerful x ending. Literary cred includes an appearance in Ursula Le Guin’s books about the world of Earthsea. And an early role-playing video game was 1984's The Black Onyx.

Orion

A name with both mythological and celestial links, Orion is a shooting star. It went from Number 996 in 1991 to its current rank of 368, and its further upswing seems inevitable. Orion is one of the brightest constellations in the night sky and is featured in series such as Harry Potter and Artemis Fowl. Orion could make a namesake name for an uncle Ryan.

Orson

Though Orson Welles’ original first name was George, his middle name became almost a single-name signature for the maker of Citizen Kane. With its ‘bear cub’ meaning, stylish "-on" ending and rotund image, Orson is now a viable possibility. Both Paz Vega and Lauren Ambrose are moms of Orsons. And if you’re looking for something distinctive, Orson has been off the list since 1901.

Unique Boy Names Starting With O

  • OctavioChevron - Right
  • OisinChevron - Right
  • OlafChevron - Right
  • OlsenChevron - Right
  • OrenChevron - Right
  • OrlandoChevron - Right
  • OsbourneChevron - Right
  • OsirisChevron - Right
  • OswaldChevron - Right
  • OttoChevron - Right

See all boy names that start with OChevron - Right

Oscar

Oscar, a round and jovial choice, is a grandpa name that's fast taking over from such urban trendies as Max and Sam. Actors Hugh Jackman and Gillian Anderson chose Oscar for their sons. Oscar may bring to mind the renowned poet Oscar Wilde, the academy awards, or the grouchy puppet. Cool nicknames Oz and Ozzy make Oscar feel modern again.

Oslo

One of the most underrated place names, Oslo is the capital city of Norway. The energetic "-o" ending is right on trend, in line to follow Hugo, Arlo, Milo, and their cousins in their rises in popularity. Otto is another stylish international choice with bookend o's that is ripe for revival.

Otis

Jazzy Otis is having a real renaissance, thanks to its appealing combo of strength and spunk. Well used at the turn of the last century — it even entered the Top 100 a couple of times — but then fell off completely a century later. Now it’s back, ranking at 647 in the US, and 34 on Nameberry. And it’s only been helped by being picked by such celebrities as Tobey Maguire and Olivia Wilde and Jason Sudeikis.

Ozias

One of the coolest and most intriguing biblical names out there, Ozias may be just what parents are looking for. That long "i" sound is in many of the trending biblical names today, from Josiah and Jeremiah to Silas and Cyrus. Throw in the jazzy nicknames Oz and Ozzy, and you've got yourself a winner. Similar sounding Osiris is the name of an Egyptian god who dies and is reborn every year.

Ozzy

This jazzy nickname can be short for Oscar, Oswald, Osborn, Osmond — or it can stand on its own. Hard-core rocker Ozzy (born John) Osbourne might not be everyone's idea of a role model, but his nickname name, along with others like Iggy and Izzy, are now on trend. Ozzy entered the Top 1000 in 2021, rising fast up to 712.

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Best O Names for Boys (2024)

FAQs

What name starts with O for boy? ›

Top 100 Baby Boy Names That Start With O
OliverOwen
OscarOmar
OrionOdin
OttoOakley
OnyxOmari
45 more rows
Mar 6, 2023

What is a cool name for O? ›

Along with Olivia and Oliver, other cool names with a strong O in the US Top 250 include Arlo, Diego, Enzo, Leo, Mateo, Milo, Olive, and Theo. Names with multiple Os may be especially cool — such as Apollo, Oona, Otto, and Rocco.

What is a unique boy name? ›

The rarest baby boy name is Rome, but other rare baby boy names include Chester, Henley, and Maynard. Finding a rare baby boy name means discovering a unique fit for your little one. Throughout their life, they'll have a special spot in the world and likely won't meet too many others with their moniker.

Do Irish names start with O? ›

There are now four O' names in the Irish top 10 (O'Brien, O'Sullivan, O'Connor, O'Neill). 2. Surnames starting with Mac, meaning “son of”, were in general use in Ireland by the late 1100s. However, the O and Mac names weren't always family names in the usual sense.

What is a rare 4 letter boy name? ›

Unique four letter names for boys on our recommended list include Beau, Cove, Elio, Ford, Hart, Huck, Land, Nico, Otis, Pike, Rafi, and Shaw.

What is Ozzy short for? ›

Ozzy name meaning and origin

A short form of names beginning with os, such as Oscar and Oswald. The Old English element os comes from the Old Norse ass, and means "god".

What boys names have an O sound? ›

Jonah, Theo, Noah, Owen, Leo, Rowan, Joseph, Roman, Jonas, Shiloh, Hugo, Ronan.

What does O in names stand for? ›

In contrast to Mc- and Mac-, found in both Ireland and Scotland, the prefix O' is unique to Ireland. It is derived from the Gaelic word “ua,” also abbreviated as uí or Ó, meaning “grandson of.” Thus any name beginning with O' is without question an Irish patronymic.

What name has an O for a baby? ›

Along with Olivia, other girl names beginning with O in the US Top 500 include Olive, Ophelia, Oakley and spelling variant Oaklee, and Octavia. As well as Oliver, other boy names starting with O in the US Top 500 include Owen, Oscar, Omar, Orion, Oakley, Odin, and Omari.

What is the most rare guy name? ›

100 Rare Boy Names
  • Rome.
  • Flynn.
  • Everest.
  • Quinn.
  • Caspian.
  • Orson.
  • Fisher.
  • Montgomery.
Jan 10, 2024

What is Otto short for? ›

Otto's a short form of several ancient German names such as Otfried and Otmar with a first syllable from Old German “od, ot”, meaning “wealth, property.” Old English “Ead”, first syllable of Edward and Edgar, had the same Germanic root.

What are the 20 rarest names? ›

20 Most Rare Baby Names
  • Alessia.
  • Anya.
  • Aurelia.
  • Azalea.
  • Bexley.
  • Briar.
  • Effie.
  • Ellerie.
Mar 15, 2019

What is a rare 5 letter boy name? ›

Boy Names:
  • Ethan (Hebrew) - Strong, firm.
  • David (Hebrew) - Beloved.
  • Felix (Latin) - Fortunate, happy.
  • Lucas (Latin) - Bright, shining.
  • Henry (Germanic) - Ruler of the household.
  • Lance (Germanic) - Land.
  • Jason (Greek) - Healer. ...
  • Oscar (Irish) - Friend of deer.
Jan 8, 2024

What is the rarest name? ›

Give baby a tie to any time with an edgy, rare baby name.
  • Falco.
  • Dray.
  • Niobe.
  • Hartwell.
  • Lazare.
  • Salomi.
  • Bronya.
  • Megara.
Apr 30, 2024

What words begin with o? ›

List of Words Beginning With 'O' For Kids
OatsOintmentOr
OceanOliveOral
OctoberOmeletteOrange
OctopusOnOstrich
OfOnceOven
3 more rows
Jun 16, 2022

What does O stand for in a name? ›

a prefix meaning “descendant,” in Irish family names. O'Brien. O'Connor.

What does O mean in a name? ›

A man's surname is generally formed by Ó ("descendant"; historically Ua) or Mac ("son") followed by a name or definite noun (often a profession) in the genitive case, e.g. Ó Dónaill (literally "descendant of Dónall") and Mac Siúrtáin (literally "son of Jordan").

What is a 4 letter boy name? ›

4 Letter Boy Names for Your List
CruzHoly crossSpanish
DrewWiseWelsh
DukeLeaderLatin
EhanExpectedIndian (Sanskrit)
ElonOak treeHebrew
10 more rows

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