170 Boy Names that Start with O (Unique O Boy Names)

Last Updated on November 7, 2023

Selecting a name for your baby boy can be an exciting yet challenging task. With the countless options out there, parents often look for names that are unique, meaningful, and hold a special place in their hearts. One way to narrow down the choices is by focusing on names that begin with a specific letter, such as the letter O. In this article, we will explore a variety of boy names that start with O!

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Boy Names That Start With O

The letter O holds a unique position in the alphabet, making it an extraordinary choice for naming baby boys. Boy names starting with the letter O are often seen as adventurous, strong, and creative, attributes that parents may want to pass onto their sons. In this section, we will explore various popular boy names that start with the letter O, showcasing their significance and origins.

Boy Names that Start with O Pin

Some popular names with O as the first letter include Oliver, Oscar, Omar, and Otis. These examples offer varied origins, meanings, and personality traits, giving parents a wide array of options when choosing a name for their baby boy.

  • Oliver is a Germanic name, meaning “olive tree.” It evokes a sense of peace and longevity, making it an attractive choice for many parents.
  • Oscar could have an English or Irish origin, with meanings such as “God spear,” “deer-lover,” or “champion warrior,” showcasing a strong and masculine personality.
  • Omar has Arabic and Hebrew origins, meaning “flourishing.” This name reflects the idea of a blossoming baby boy who is full of potential.
  • Otis is a name of German origin, meaning “wealthy.” It carries an essence of prosperity and success, which may inspire ambition in the child.

Other notable boy names starting with O, inspired by famous figures and fictional characters, can be found in the table below:

Name Origin Meaning
Odell Old English “wealthy; valuable”
Orion Greek Mythology “son of fire”
Owen Welsh “young warrior; well-born”
Orlando Italian, Spanish “famous land”
Oscar English, Irish, Gaelic “deer lover, God spear, or champion warrior”
Orson English, French “bear cub”
Oleg Russian “holy, blessed”

Remember that the best name for your baby boy will not only start with the letter O but also carry a personal connection and a positive meaning. By doing thorough research, you can ensure that the name you choose will signify a unique combination of strength, creativity, and individuality.

Popular Boy Names Starting with O

One of the most important and fun tasks for expecting parents is choosing a name for their baby. When looking for baby boy names starting with O, there are many popular and unique options. According to the Social Security Administration, these are some of the top O names for baby boys.

Oliver: This classic name has Germanic origins and comes from the word “olive tree.” Oliver is a timeless name that never goes out of style and has been consistently ranked among the top 100 baby boy names.

Owen: Another popular O name, Owen has Welsh roots and means “young warrior” or “well-born.” It’s a strong and sturdy choice for a baby boy’s name that has gained popularity in recent years.

Oscar: With its English or Irish origins, Oscar carries meanings like “God spear,” “deer-lover,” and “champion warrior.” It’s not only a popular boy name but also a name with a rich history and cultural significance.

Omar: This Arabic name means “flourishing” and “long-lived.” It’s an excellent choice for parents looking for a name with a positive and powerful meaning.

Odin: Inspired by Norse mythology, Odin is the name of the chief god, representing wisdom, healing, and poetry. It’s a bold and unique choice for parents who want to give their baby boy a name with a rich story and mystique behind it.

Common O Boy Names and Variants

In this section, we will discuss common boy names that start with O and their variants. These names range from classic and timeless to modern and trendy.

Oliver is a popular boy name of Old Norse origin, meaning “ancestor’s descendant.” This name has gained popularity in recent years and has variants such as Olivier in French-speaking countries. It’s important to note that Olivia is a similar name but typically used for girls, derived from the same root with a meaning of “olive tree.”

Another common O name is Owen, a name with Welsh and Irish origins, meaning “young warrior” or “well-born.” This name has a strong and masculine feel, fitting for a young boy.

Orlando is a romantic and melodious name with Italian roots, meaning “famous land.” This name has been immortalized in literature, such as in Shakespeare’s “As You Like It.” A similar name, Orson, derived from Latin and meaning “bear cub,” offers an alternative choice for those looking for a name with an animal association.

Many parents also find appeal in names with unique and distinctive sounds. Orin, an Irish name meaning “little green one” or “pale,” is one such example. Orville, a name of Old French origin meaning “golden city,” provides a distinctive and rare option for those seeking a name with historical roots.

Some popular names with O include:

  • Oliver
  • Olivier
  • Owen
  • Orlando
  • Orson
  • Orin
  • Orville

Unique Boy Names with O

If you’re looking for unique and interesting baby boy names that start with ‘O’, you’re in the right place. In this section, we will cover a variety of unique ‘O’ names and provide examples in tables to help make your decision easier.

One remarkable name to consider is Onz. This uncommon name has a modern feel and sounds strong and confident. Another distinctive choice is Ole, which is a traditional Scandinavian name meaning “ancestor’s descendant.” It’s simple and easy to pronounce, making it a great option for your baby boy.

Additionally, Oba is an exceptional choice with African roots, meaning “king” in the Yoruba language. This name exudes leadership qualities and is perfect for a little one who is destined to leave a mark in the world.

If you’re looking for something with a bit of Southern charm, Odell is a unique choice with English origins, meaning “from the hill.” This name is a lovely option for parents seeking something that’s both classic and unique.

Let’s take a look at some examples with tables:

Unique O Names Meaning
Onz (Modern, unique)
Ole Ancestor’s Descendant
Oba King
Odell From the hill

We also collected a list of more baby boy names with the letter ‘O’, which you can find in the table below:

O Names Meaning
Orson Bear Cub
Oswin Divine friend
Oakley Oak tree meadow
Oren Pine tree

Nature-Inspired Baby Boy Names that Start with O

Nature has always been a powerful source of inspiration for naming children. In this section, we will explore a selection of nature-inspired boy names that start with the letter ‘O’. These names evoke images of strength, beauty, and serenity found in the natural world.

One such name is Oakley, which has its roots in Old English and means “oak clearing.” This name brings to mind the grandeur and resilience of oak trees, making it a solid choice for parents seeking a strong, earthy name for their baby boy. Similarly, Oak itself can also be used as a name, emphasizing the strength and endurance associated with oak trees.

Olive is another nature-inspired name with a connection to the letter ‘O’. Derived from the olive tree, this name has a peaceful and graceful essence, as the olive branch is widely regarded as a symbol of peace and harmony. While traditionally considered a feminine name, Olive can also be a unique, gender-neutral option for boys.

For parents seeking to instill a sense of adventure and vastness in their child’s name, Ocean is an excellent choice. This name captures the beauty, depth, and mysterious nature of the world’s oceans, making it an evocative and striking option for a baby boy.

Lastly, Oaks can also be considered as a nature-inspired name. This variation on Oak and Oakley emphasizes the plurality and collective strength of these majestic trees. It can serve as a symbol of unity, representing the idea of “strength in numbers.

Mythological and Historical O Names for Boys

Odin is a powerful Norse god known for his wisdom, healing, and poetry. He is one of the most popular figures in modern culture, with appearances in books, movies, and video games. Consider naming your child Odin if you want to instill wisdom and strength in him.

Orion is a prominent figure in Greek mythology, a skilled hunter who was transformed into a constellation. Named after this legendary figure, your child may be destined for great adventures and epic stories.

Osiris is an ancient Egyptian god, typically associated with the afterlife, fertility, and resurrection. Known as the god of indivisible unity and the judge of the dead, this name might echo divine qualities for your child.

Octavius and Octavian are names with historical significance, dating back to Ancient Rome. They both share a Latin origin and bear the meaning “eighth.” Octavian was the name of the first Roman emperor, Augustus, who was responsible for the Pax Romana, the period of peace and prosperity that lasted for two centuries.

Odysseus is another character with roots in Greek mythology, a hero who experienced a decade-long adventure to return home after the Trojan War. His story, recorded in Homer’s epic, offers your child a name synonymous with determination and resilience.

Unisex Names Starting with O

Unisex names beginning with the letter O have gained popularity due to their unique and modern appeal. In this section, we will cover some of the most popular and interesting unisex names starting with O, making it easier for you to choose a name that suits your preferences.

Ocean is a unisex name that has gained traction in recent years due to its nature-inspired and calming connotations. This gender-neutral name is both refreshing and strong, making it an alluring option for parents seeking a unique and memorable title for their child.

Another name of interest is Orion, inspired by the prominent constellation in the night sky. Orion holds universal appeal due to its celestial association, and its roots in Greek mythology give it an added layer of depth and mystique. As a unisex name, Orion appeals to a wide audience, making it a sought-after choice.

Onyx, a name derived from a precious black gemstone, exudes sophistication and elegance. This unisex name carries a sense of strength and refinement, making it a distinctive moniker for both boys and girls. Its rarity adds to its appeal, as Onyx is not commonly found among unisex names.

To provide you with more options, here is a list of additional unisex names starting with the letter O:

  • Oakley
  • Ollie
  • Owen
  • Ozzie
  • Odell
  • Ola
  • Oleander
  • Ondria
  • Ordell
  • Oriel

These names, along with Ocean, Orion, and Onyx, showcase the variety and uniqueness that O-starting unisex names have to offer. Utilize these suggestions as a starting point as you continue your quest to discover the perfect name for your bundle of joy.

Celebrity-Inspired Boy Names that Start with O

When searching for a unique name for your baby boy, you might draw inspiration from famous celebrities or characters. Here’s a list of famous O names that could spark your interest.

Ozzy: A name made popular by the legendary rock musician Ozzy Osbourne. This nickname-turned-given-name is a shorter form of the name Osbourne and has an edgy, rock ‘n’ roll vibe to it.

Orson: Celebrated director Orson Welles brought attention to this distinctive name. Derived from the Latin name Orsinus, Orson means “bear cub” and has a strong, creative feel.

Orville: The name of aviation pioneer Orville Wright, the first person to fly an aircraft with sustained flight capabilities. This classic name, meaning “golden city” in Old French, could be a fitting choice for a baby boy who’s destined for great heights.

According to Nameberry, these celebrity-inspired names are only a few examples of the wide variety of O names for boys. Other notable O names include:

Oliver Oscar Oren Otis
Omri Odysseus Octavian Othello

By choosing an O name inspired by famous personalities and characters, you’ll be giving your baby boy a strong, distinctive moniker that may help them stand out from the crowd.

International Boy Names with O

Omar is a popular name with Arabic and Hebrew origins. It means “flourishing” and is a strong choice for any baby boy. In many countries, Omar is a common name and has gained popularity around the world.

Oskar is a variation of the name “Oscar,” which has both Irish and Norse origins. The Irish meaning relates to deer lovers, while the Norse connection refers to the divine spear. It is a popular name in Scandinavian countries like Sweden and Finland.

Osvaldo and Oswaldo are popular names with similar sounds. These names have Germanic roots, meaning “God’s power.” Osvaldo, an Italian and Spanish variant, and Oswaldo, a Portuguese variant, appeal to families with a European heritage.

Osman is a strong name with Turkic, Arabic, and Bosniak roots. It means “son of the snake” and is well-known due to the historical figure Osman I, the founder of the Ottoman Empire. This name resonates with families looking for an influential namesake.

Oslo is a modern, edgy name inspired by the capital city of Norway. It is recently gaining attention as a unique choice for a baby boy. The name also relates to an Old Norse term, “Ás,” referring to a god or deity, and the element “hló,” which means protection or welfare.

Ozias is a Greek-originated name that means “strength” or “salvation.” It is a rare but distinct choice for those seeking an o-name with a strong meaning and an international allure.

Let’s take a look at these names in a tabular format:

Name Origin Meaning
Omar Arabic/Hebrew Flourishing
Oskar Irish/Norse Deer lover/Divine spear
Osvaldo Italian/Spanish God’s power
Oswaldo Portuguese God’s power
Osman Turkic/Arabic/Bosniak Son of the snake
Oslo Norwegian Capital city of Norway/God’s protection
Ozias Greek Strength/Salvation

List of Boy Names that Start with O

  1. Oakley
  2. Oakes
  3. Obadiah
  4. Obed
  5. Oberon
  6. Obi
  7. Obie
  8. Obrien
  9. Ocean
  10. Octavio
  11. Oda
  12. Odin
  13. Odis
  14. Odran
  15. Odysseus
  16. Oen
  17. Ofer
  18. Ogden
  19. Oggie
  20. Oguz
  21. Ohad
  22. Oisin
  23. Ojai
  24. Oke
  25. Okechukwu
  26. Okello
  27. Okey
  28. Okoth
  29. Okpara
  30. Ola
  31. Olaf
  32. Olamide
  33. Olan
  34. Olando
  35. Olatunji
  36. Olav
  37. Ole
  38. Oleander
  39. Oleg
  40. Olen
  41. Olenka
  42. Olenko
  43. Oles
  44. Olesya
  45. Olexander
  46. Olga
  47. Oli
  48. Olias
  49. Olin
  50. Olindo
  51. Olinde
  52. Olivander
  53. Olive
  54. Oliver
  55. Oliverio
  56. Olivier
  57. Oliviero
  58. Ollie
  59. Olly
  60. Olman
  61. Olmo
  62. Olof
  63. Olu
  64. Olufemi
  65. Olufunmilayo
  66. Olumide
  67. Olumuyiwa
  68. Olusola
  69. Oluwadamilare
  70. Oluwasegun
  71. Oluwatobi
  72. Oluwatoyin
  73. Oluwatosin
  74. Oluwayemisi
  75. Oluwemimo
  76. Oluwunmi
  77. Oluwaseun
  78. Oluwaseyi
  79. Oluwatoyosi
  80. Olyn
  81. Omar
  82. Omari
  83. Omarr
  84. Omer
  85. Omri
  86. Onan
  87. Oneal
  88. Oneil
  89. Oniel
  90. Onyx
  91. Ophir
  92. Ora
  93. Oran
  94. Orazio
  95. Orbit
  96. Oren
  97. Orest
  98. Oreste
  99. Orestes
  100. Orfeo
  101. Orhan
  102. Ori
  103. Orian
  104. Oriel
  105. Orion
  106. Oris
  107. Orison
  108. Orland
  109. Orlando
  110. Orley
  111. Orlo
  112. Orly
  113. Orman
  114. Ormond
  115. Orpheus
  116. Orran
  117. Orrick
  118. Orrie
  119. Orrin
  120. Orson
  121. Orval
  122. Orville
  123. Osamu
  124. Osborne
  125. Oscar
  126. Oshea
  127. Osher
  128. Osias
  129. Osie
  130. Osiris
  131. Osman
  132. Osmar
  133. Osmond
  134. Osric
  135. Osvaldo
  136. Oswald
  137. Oswaldo
  138. Othello
  139. Othmar
  140. Otho
  141. Otis
  142. Otmar
  143. Otoniel
  144. Ottavio
  145. Otter
  146. Otto
  147. Ousmane
  148. Ovid
  149. Ovila
  150. Owain
  151. Owen
  152. Owyn
  153. Oz
  154. Ozan
  155. Ozias
  156. Oziel
  157. Ozzie
  158. Ozzy
  159. Ozymandias
  160. O’Neal
  161. O’Reilly
  162. O’Ryan
  163. O’Shea
  164. O’Sullivan
  165. O’Toole
  166. Ovidio
  167. Oviedo
  168. Ovilio
  169. Ovind
  170. Ovilia

Frequently Asked Questions

What are some unique boy names beginning with O?

Here are a few unique baby boy names starting with the letter O:

Name Meaning
Oakden From the oak tree valley
Ojore Firstborn in the family
Octavius The eighth
Ogun War, iron, God of war

These names are distinct and characteristic, giving your baby a unique identity.

What are some uncommon O-starting boy names?

If you’re searching for uncommon boy names starting with O, here’s a list for you:

Name Meaning
Ossian Little deer
Orpheus Beautiful voice; sweet-talking
Osric Divine ruler
Orson Bear cub

These names are less frequently used, making them unique and distinctive for your baby boy.

Can you suggest rare boy names that start with O?

Certainly! Here are some rare O-starting boy names:

Name Meaning
Oakley Meadow of oak trees
Ordean Gold crown
Olivier Olive tree
Orrick Old or ancient oak tree

These names are uncommon and provide a distinct identity for your baby boy.

What are some cute boy names beginning with O?

Some adorable boy names starting with O include:

Name Meaning
Ozzy God’s power
Oak Oak tree
Ollie Olive tree
Onyx Black gemstone

These names are endearing and charming, perfect for your little one.

What are some biblical boy names starting with O?

Here are a few biblical boy names that begin with the letter O:

Name Meaning
Obadiah Serving Yahweh
Obed Worshipping
Omar Speak
Othniel Lion of God
Ohad United
Omri Life or servant

These names have significant meanings and connections to the Bible, making them a great choice for those looking for spiritual names.

What are the meanings of some boy names that start with O?

Below are some boy names that start with the letter O, accompanied by their meanings:

Name Meaning
Odin Inspiration, wisdom
Orlando Famous land or famous man
Oran Little pale green one
Osborn Divine bear

These names have rich and varied meanings that can provide your baby boy with an interesting and meaningful identity.

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