30 Boy Names that Begin with the Letter O

If you're pregnant and you haven't decided what you're going to name your baby boy, here's a list of names that begin with the letter O.
30 Boy Names that Begin with the Letter O

Last update: 14 May, 2022

If you’re pregnant and you already know the sex of your baby, now you have to decide what you are going to name him. If you’re still not sure, don’t miss this list in which you will find boy names that begin with the letter O.

We want to help you with this complicated decision, so we’ve compiled some of the most beautiful ones out there. We’ll tell you the meaning and origin of each one so that you can decide which of them best suits your expectations. Will you join us on this journey through the roundest letter of the alphabet?

Boy names that begin with the letter O

As you probably already know, the letter O occupies the fifteenth position in the Spanish alphabet and is the fourth vowel.

Although its origins date back to the Phoenicians, we know that the Greeks divided it into two. On the one hand, omicron for the short O, and omega (Ω) to refer to the long O. But the Latin alphabet united these elements in a single letter for both sounds.

As we always tell you, try to combine each name with your child’s last name. This way, you’ll hear how it sounds, you’ll practice its pronunciation, and you’ll be able to avoid cacophonies or names that may end in ridicule. After all, this will be the cover letter that your child will carry throughout his life.

Names in alphabetical order

A mother kissing her newborn baby on the forehead.
Imagine what your baby will look like, the smell of his skin and the color of his eyes. That way, you’ll become enlightened with the appropriate name.

Oan: this is a name of Breton origin that means ‘lamb’.

Obama: this name is of African origin and means ‘bent’. It’s become popular thanks to the former president of the United States, Barack Obama.

One voice can change a room, and if one voice can change a room, then it can change a city, and if it can change a city, it can change a state, and if it can change a state, it can change a nation, and if it can change a nation, it can change the world. Your voice can change the world.”

-Barack Obama-

Obi: a name of Nigerian origin that means ‘heart’.

Octavio: of Latin origin, it means ‘the one who was born in eighth place’.

Odell: a unisex name of English origin that means ‘of the valley’.

Odin: the name of the main god of Norse mythology.

Ogima: a curious name of Chippewa origin, it means ‘chief, warrior leader’.

Okpara: name of Egyptian origin, ideal for your first child, as it represents the ‘firstborn’.

Olaf: of Norwegian origin, it means ‘heir’.

Olayo: this is a variant of Eulalio, which means ‘he who speaks well’.

Oliver: a name of English origin, which comes from the French name Olivier. Its meaning is ‘olive tree’ and it symbolizes wisdom and peace.

Olsen: this is also a name of Norwegian origin and it means ‘son of Olaf’.

Omar: this is a name of Arabic origin, whose meaning is ‘long-lived’.

Oren: of Hebrew origin, this name means ‘laurel tree’.

Ori: of Hebrew origin, this name means ‘my light’.

Names for your son that begin with the letter O

Oriol: a Catalan name that comes from the Latin Aureolus, meaning ‘golden’.

Orion: in addition to a constellation, it was also the name of a hunter in Greek mythology.

Orlando: this name is of Germanic origin and means ‘country of gold’.

Orson: this name is of Latin origin and represents the ‘bear’.

Oscar: this is a name of Germanic origin meaning ‘spear of the gods’.

Ostadar: of Basque origin, this name means ‘rainbow’.

Osvaldo: this name is also of Germanic origin and it means ‘resplendent town’.

Otto/Oto: a name of Germanic origin, it symbolizes ‘wealth’.

Ottah: a name of Egyptian origin that means ‘third-born’.

Ovidio: this is also a name of Latin origin that refers to ‘sheep’.

Owen: this is a name of Gaelic origin and it means ‘young warrior’.

Ozias: this name is of Greek origin and it means ‘salvation’.

Oziel: this name is also of Hebrew origin and it invokes the ‘power of God’.

Ozuru: this is a name of Japanese origin that means ‘big stork’.

Ozzie: this is the diminutive of some names like Osvaldo, Ozias, and Oz.

A baby boy sleeping on a blanket.
Your baby will have the most beautiful name that you can imagine because it will be the one that captivates your heart just upon hearing it.

We’re sure that among all these boy names that start with the letter O, you’ve found what you were looking for. If not, we invite you to take a look at the lists of elvish names or any other exotic theme that we’ve prepared for you.

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34 Boy Names that Start with the Letter V

If you don't know what you'll name your little one, take a look at these boy names that start with the letter V. You'll love them!