Baby Boy Names A–Z with Meanings, Numerology & Origin
Explore a wide collection of baby boy names with beautiful meanings, numerology, lucky numbers and origins. Browse A–Z to discover traditional, modern and trending boy names chosen by parents worldwide.
Baby Boy Names Beginning with O
Names starting with O stand for openness, optimism, and originality. Baby names beginning with O often sound strong and uplifting. From Olivia and Omar to Omkar and Owen, they symbolize hope, harmony, and creativity. O-names feel modern and inspiring, perfect for those who embrace positivity and individuality.
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| Alphabet | Name | Meaning | Numerology | Ruling Planet | Lucky Day | Lucky Colour | Lucky Number(s) | Traits | Religion | Gender | Origin |
|---|---|---|---|---|---|---|---|---|---|---|---|
| O | Octave | Octave — embodying qualities of Eighth-born | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | General | Boy | Latin |
| O | Octavian | Octavian — known for symbolizing Eighth-born ruler | 4 | Rahu (Uranus) | Saturday | Grey | 4, 13, 22, 31 | Organized, Hardworking, Loyal, Trustworthy | General | Boy | Latin |
| O | Octaviano | Octaviano — carrying the essence of Eighth-born noble | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | Latin |
| O | Octavio | Octavio — cherished for its connection to Eighth-born nobleman | 4 | Rahu (Uranus) | Saturday | Grey | 4, 13, 22, 31 | Organized, Hardworking, Loyal, Trustworthy | General | Boy | Latin |
| O | Octavious | Octavious — admired for representing Eighth-born leader | 8 | Saturn | Saturday | Black | 8, 17, 26, 35 | Achiever, Practical, Power-Seeker, Determined | General | Boy | Latin |
| O | Octavis | Octavis — often chosen for its link with Noble and eighth-born | 8 | Saturn | Saturday | Black | 8, 17, 26, 35 | Achiever, Practical, Power-Seeker, Determined | General | Boy | Latin |
| O | Octavius | Octavius — admired as it reflects Ancient Roman name | 2 | Moon | Monday | White | 2, 11, 20, 29 | Caring, Patient, Mediator, Supportive | General | Boy | Latin |
| O | Octavus | Octavus — evoking the qualities of Eighth-born child | 2 | Moon | Monday | White | 2, 11, 20, 29 | Caring, Patient, Mediator, Supportive | General | Boy | Latin |
| O | October | October — a poetic name signifying Tenth month | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | Global, Modern |
| O | Ocvran | Ocvran — cherished for its connection to Unique and rare | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | Global, Modern |
| O | Odai | Odai — an inspiring name associated with Great and powerful | 2 | Moon | Monday | White | 2, 11, 20, 29 | Caring, Patient, Mediator, Supportive | General | Boy | Japanese |
| O | Odakota | Odakota — reflecting the spirit of Friend of everyone | 4 | Rahu (Uranus) | Saturday | Grey | 4, 13, 22, 31 | Organized, Hardworking, Loyal, Trustworthy | General | Boy | Native American |
| O | Odale | Odale — valued for its essence of Wealthy valley | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | English, Western |
| O | Odam | Odam — a graceful name meaning Son of Adam | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | African |
| O | Odanodan | Odanodan — shining with the meaning of River and flow | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | Hindu | Boy | Indian, Sanskrit |
| O | Odd | Odd — loved for the sense of Point of a weapon | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | General | Boy | Norse, Old Norse |
| O | Oddvar | Oddvar — a unique name that means Point guardian | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | Norse, Old Norse |
| O | Ode | Ode — admired for representing Praise and melody | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | Jewish | Boy | Hebrew |
| O | Oded | Oded — admired as it reflects Encourager | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | Jewish | Boy | Hebrew |
| O | Odel | Odel — rooted in tradition, associated with Wealthy and prosperous | 9 | Mars | Tuesday | Maroon | 9, 18, 27, 36 | Visionary, Courageous, Charitable, Generous | General | Boy | Germanic |
| O | Odell | Odell — rooted in tradition, associated with Woad hill | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | General | Boy | English, Western |
| O | Oden | Oden — an inspiring name associated with Fury and spirit | 2 | Moon | Monday | White | 2, 11, 20, 29 | Caring, Patient, Mediator, Supportive | General | Boy | Norse, Old Norse |
| O | Oder | Oder — admired for representing Wealthy army | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | Germanic |
| O | Odhran | Odhran — a charming name with roots in Pale green | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | Celtic, Irish |
| O | Odiaka | Odiaka — treasured for its meaning: Wealth is greater | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | General | Boy | African |
| O | Odiakos | Odiakos — reflecting the spirit of Bringer of joy | 2 | Moon | Monday | White | 2, 11, 20, 29 | Caring, Patient, Mediator, Supportive | General | Boy | African |
| O | Odilo | Odilo — an inspiring name associated with Prosperous in battle | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | Germanic |
| O | Odilon | Odilon — a distinguished name linked to Fortunate and wealthy | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | French, Latin |
| O | Odin | Odin — cherished for its connection to Chief god | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | Norse, Old Norse |
| O | Odinan | Odinan — admired for representing Life and prosperity | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | General | Boy | African |
| O | Odinma | Odinma — a timeless choice symbolizing Good and honorable | 2 | Moon | Monday | White | 2, 11, 20, 29 | Caring, Patient, Mediator, Supportive | General | Boy | African |
| O | Odion | Odion — echoing the idea of Firstborn twin | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | General | Boy | African |
| O | Odis | Odis — echoing the idea of Song of praise | 2 | Moon | Monday | White | 2, 11, 20, 29 | Caring, Patient, Mediator, Supportive | General | Boy | English, Western |
| O | Odissan | Odissan — cherished for its connection to From Odisha | 9 | Mars | Tuesday | Maroon | 9, 18, 27, 36 | Visionary, Courageous, Charitable, Generous | Hindu | Boy | Indian, Sanskrit |
| O | Odiuku | Odiuku — often chosen for its link with Wealth of God | 9 | Mars | Tuesday | Maroon | 9, 18, 27, 36 | Visionary, Courageous, Charitable, Generous | General | Boy | African |
| O | Odo | Odo — a distinguished name linked to Wealth and riches | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | General | Boy | Germanic |
| O | Odolf | Odolf — a timeless choice symbolizing Wolf and wealth | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | General | Boy | Germanic |
| O | Odom | Odom — admired as it reflects Son of Adam | 2 | Moon | Monday | White | 2, 11, 20, 29 | Caring, Patient, Mediator, Supportive | General | Boy | African |
| O | Odon | Odon — a graceful name meaning Wealth and fortune | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | General | Boy | Spanish, Latin |
| O | Odongo | Odongo — rooted in tradition, associated with Male twin | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | General | Boy | African |
| O | Oduma | Oduma — an inspiring name associated with Roaring lion | 9 | Mars | Tuesday | Maroon | 9, 18, 27, 36 | Visionary, Courageous, Charitable, Generous | General | Boy | African |
| O | Odysseus | Odysseus — treasured for its meaning: Legendary hero | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | Greek |
| O | Odyssey | Odyssey — a classic choice tied to Long adventurous journey | 4 | Rahu (Uranus) | Saturday | Grey | 4, 13, 22, 31 | Organized, Hardworking, Loyal, Trustworthy | General | Boy | Greek |
| O | Oengus | Oengus — a poetic name signifying One strength | 9 | Mars | Tuesday | Maroon | 9, 18, 27, 36 | Visionary, Courageous, Charitable, Generous | General | Boy | Celtic, Irish |
| O | Ofar | Ofar — a poetic name signifying Young deer | 4 | Rahu (Uranus) | Saturday | Grey | 4, 13, 22, 31 | Organized, Hardworking, Loyal, Trustworthy | Jewish | Boy | Hebrew |
| O | Ofer | Ofer — evoking the qualities of Fawn | 8 | Saturn | Saturday | Black | 8, 17, 26, 35 | Achiever, Practical, Power-Seeker, Determined | Jewish | Boy | Hebrew |
| O | Offa | Offa — often chosen for its link with Prosperous ruler | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | English, Western |
| O | Ofir | Ofir — known for symbolizing Gold and wealth | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | Jewish | Boy | Hebrew |
| O | Ofra | Ofra — admired for representing Deer and fawn | 4 | Rahu (Uranus) | Saturday | Grey | 4, 13, 22, 31 | Organized, Hardworking, Loyal, Trustworthy | Jewish | Boy | Hebrew |
| O | Ofri | Ofri — celebrated for symbolizing Fruit and blessing | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | Jewish | Boy | Hebrew |
| O | Og | Og — carrying the essence of Giant king | 4 | Rahu (Uranus) | Saturday | Grey | 4, 13, 22, 31 | Organized, Hardworking, Loyal, Trustworthy | Christian | Boy | Biblical |
| O | Oga | Oga — celebrated for symbolizing Chief and leader | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | General | Boy | African |
| O | Ogadinma | Ogadinma — embodying qualities of Life is good | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | African |
| O | Ogaleesha | Ogaleesha — often chosen for its link with Warlike | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | Native American |
| O | Ogano | Ogano — a poetic name signifying Strength of God | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | General | Boy | African |
| O | Ogbebulu | Ogbebulu — shining with the meaning of Strong warrior | 4 | Rahu (Uranus) | Saturday | Grey | 4, 13, 22, 31 | Organized, Hardworking, Loyal, Trustworthy | General | Boy | African |
| O | Ogbonna | Ogbonna — known for symbolizing Wisdom and knowledge | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | General | Boy | African |
| O | Ogden | Ogden — evoking the qualities of Oak valley | 9 | Mars | Tuesday | Maroon | 9, 18, 27, 36 | Visionary, Courageous, Charitable, Generous | General | Boy | English, Western |
| O | Ogdon | Ogdon — a radiant choice that means Oak hill | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | English, Western |
| O | Ogechi | Ogechi — loved for the sense of God’s time | 2 | Moon | Monday | White | 2, 11, 20, 29 | Caring, Patient, Mediator, Supportive | General | Boy | African |