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By Isolde Quirante Assistant Editor

Looking for boy names that start with O? You’ve got options! Just ask parents in The Bump community, and they’ll tell you all about their obsession: “I had a dream a long time ago that my husband and I had a son, and we named him Oliver,” says forum member Deutscher. “I simply love it!”

One of the best parts about O-boy names is that they’re just oodles of fun. They’re comforting and traditional, not to mention so versatile—ranging from edgy (like Otto) to strong and spirited (like Oisin).

From the bold and adventurous to the cute and cozy, we’ve got an entire list to help you kickstart your search.

Fun Facts About Boy Names That Start With O

  • Welcome to the dark side: According to US baby name stats from the Social Security Administration (SSA), Onyx is bigger and brighter than ever—doubling in ranking since it first appeared in the agency’s top 1,000 baby names list in 2018. It’s a Greek name that means “claw” or “nail,” and is also a precious stone known for its jet-black hue.

  • Calling all comic-lovers: Among the O-boy names currently shooting to SSA stardom are Odin and Orion. Both famously appear in the Marvel films and comics as iconic hero names and aliases.

  • The only “O”-country in the world: Oman is the only country in the world (out of 190 plus) that starts with the letter O.

  • O is the longest-surviving letter in the alphabet: While most letters have evolved over thousands of years, O has remained mostly unchanged since it was first added to the alphabet.

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Popular Boy Names That Start With O

It’s official—boy names that start with O are the moment—and parents of The Bump are spotting them left, right and center! “I see at least one Owen per classroom that I sub in,” says mommygrams0730, a teacher and community forum member. “There were two teachers in another district who had baby boys within a year of each other, and both named their son Owen. A friend of mine also has an Owen, and so does another friend’s sister!”


Don’t let all that stardom stop you from picking an O-boy name for your new addition, though. There are plenty of other popular options to peruse.

Unique Boy Names That Start With O

It may not be the most common initial in the US (only two to three percent of the SSA’s top 1,000 most popular names start with it!)—but that just makes the letter more special. From Otakar to Oxxford, sprinkle a little extra fun into your search with these sweet and unique choices.

Cute Boy Names That Start With O

Still haven’t mapped out the moniker for baby? Why not look at the atlas for inspiration? As you’ll see in our roundup ahead, the cutest boy O names actually come from cultures all over the world. In fact, this list represents more than 10 distinct languages, from Yoruba (Obasi) and Persian (Omid) to Irish (Oshin) and Aztec Nahuatl (Ohtli)—not to mention Slavic and Scandinavian tradition. Keep scrolling to find more you’ll fall for in a heartbeat!

Cool Boy Names That Start With O

Who doesn’t love a good-old mythical moniker? Plucked from world-famous Shakespearean plays and timeless tales of romance, magic and quests into the underworld, these cosmically cool boy names are worth exploring. So if you’re up for the ride, take a peek at our picks.

Short Boy Names That Start With O

One of the things we love about boy names with O at the start is how they pull you right in without even trying; even the shortest ones shine bright! Below, the snappiest boy names starting with O, ready for you to add to your list.

Long Boy Names That Start With O

Long boy O names don't just carry extra letters—they carry epic stories and so many incredible meanings we know will inspire you and your little one. (Plus, Odysseus and Obsidian are way too cool to pass up!). Intrigued? Here are our finest, multi-syllabic boy names with O for your new addition.

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