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 | Oklahoma | Oklahoma — a timeless choice symbolizing Red people land | 4 | Rahu (Uranus) | Saturday | Grey | 4, 13, 22, 31 | Organized, Hardworking, Loyal, Trustworthy | General | Boy | Global, Modern |
| O | Oko | Oko — admired for representing Stone and strength | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | General | Boy | African |
| O | Okocha | Okocha — a radiant choice that means Famous warrior | 8 | Saturn | Saturday | Black | 8, 17, 26, 35 | Achiever, Practical, Power-Seeker, Determined | General | Boy | African |
| O | Okoh | Okoh — a radiant choice that means Leader of clan | 4 | Rahu (Uranus) | Saturday | Grey | 4, 13, 22, 31 | Organized, Hardworking, Loyal, Trustworthy | General | Boy | African |
| O | Okon | Okon — a timeless choice symbolizing Born at night | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | African |
| O | Okot | Okot — reflecting the spirit of Season of rain | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | General | Boy | African |
| O | Okoth | Okoth — evoking the qualities of Born during rain | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | African |
| O | Okpara | Okpara — an inspiring name associated with Firstborn son | 8 | Saturn | Saturday | Black | 8, 17, 26, 35 | Achiever, Practical, Power-Seeker, Determined | General | Boy | African |
| O | Okpo | Okpo — a charming name with roots in Great leader | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | General | Boy | African |
| O | Okpokpo | Okpokpo — a poetic name signifying Strong presence | 9 | Mars | Tuesday | Maroon | 9, 18, 27, 36 | Visionary, Courageous, Charitable, Generous | General | Boy | African |
| O | Oktawian | Oktawian — a radiant choice that means Eighth-born | 4 | Rahu (Uranus) | Saturday | Grey | 4, 13, 22, 31 | Organized, Hardworking, Loyal, Trustworthy | General | Boy | Latin |
| O | Ola | Ola — evoking the qualities of Wealth and honor | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | African |
| O | Oladele | Oladele — cherished for its connection to Wealth has come home | 9 | Mars | Tuesday | Maroon | 9, 18, 27, 36 | Visionary, Courageous, Charitable, Generous | General | Boy | African |
| O | Olaf | Olaf — cherished for its connection to Ancestor’s relic | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | General | Boy | Norse, Old Norse |
| O | Olafemi | Olafemi — valued for its essence of God loves me | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | General | Boy | African |
| O | Olajuwan | Olajuwan — a classic choice tied to Wealth is greater | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | General | Boy | African |
| O | Olajuwon | Olajuwon — known for symbolizing Honor and success | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | General | Boy | African |
| O | Olakeakua | Olakeakua — admired for representing Sacred life | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | Hawaiian, Polynesian |
| O | Olalekan | Olalekan — admired as it reflects Wealth has increased | 8 | Saturn | Saturday | Black | 8, 17, 26, 35 | Achiever, Practical, Power-Seeker, Determined | General | Boy | African |
| O | Olamide | Olamide — a radiant choice that means My wealth has arrived | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | General | Boy | African |
| O | Olamina | Olamina — loved for the sense of Bringer of wealth | 2 | Moon | Monday | White | 2, 11, 20, 29 | Caring, Patient, Mediator, Supportive | General | Boy | African |
| O | Olan | Olan — loved for the sense of Little pale one | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | Celtic, Irish |
| O | Oland | Oland — a timeless choice symbolizing From Öland | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | Scandinavian, Norse |
| O | Olaniyan | Olaniyan — an inspiring name associated with Honor surrounds me | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | African |
| O | Olasunkanmi | Olasunkanmi — often chosen for its link with Wealth has returned | 4 | Rahu (Uranus) | Saturday | Grey | 4, 13, 22, 31 | Organized, Hardworking, Loyal, Trustworthy | General | Boy | African |
| O | Olatunji | Olatunji — admired for representing Wealth reawakens | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | General | Boy | African |
| O | Olav | Olav — valued for its essence of Descendant of ancestors | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | General | Boy | Norse, Old Norse |
| O | Oldrich | Oldrich — celebrated for symbolizing Rich and powerful | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | Slavic |
| O | Ole | Ole — an inspiring name associated with Ancestor’s descendant | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | General | Boy | Norse, Old Norse |
| O | Olee | Olee — treasured for its meaning: Honor and grace | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | African |
| O | Oleg | Oleg — a poetic name signifying Sacred and holy | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | General | Boy | Slavic |
| O | Oleh | Oleh — a unique name that means Holy and blessed | 4 | Rahu (Uranus) | Saturday | Grey | 4, 13, 22, 31 | Organized, Hardworking, Loyal, Trustworthy | General | Boy | Slavic |
| O | Olek | Olek — a poetic name signifying Defender of people | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | General | Boy | Slavic |
| O | Olekhia | Olekhia — a poetic name signifying Protector and strong | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | General | Boy | Slavic |
| O | Oleksander | Oleksander — a poetic name signifying Defender of mankind | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | General | Boy | Slavic |
| O | Olen | Olen — known for symbolizing Relic and heritage | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | Norse, Old Norse |
| O | Oleos | Oleos — an inspiring name associated with Olive tree | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | General | Boy | Greek |
| O | Oles | Oles — an inspiring name associated with Protector of people | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | Slavic |
| O | Olexei | Olexei — echoing the idea of Helper and defender | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | General | Boy | Slavic |
| O | Oley | Oley — a charming name with roots in Olive grove | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | General | Boy | English, Western |
| O | Oleyeh | Oleyeh — a graceful name meaning Noble child | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | General | Boy | African |
| O | Olgerts | Olgerts — a distinguished name linked to Sacred name | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | Latvian, Baltic |
| O | Olimpio | Olimpio — shining with the meaning of From Olympus | 8 | Saturn | Saturday | Black | 8, 17, 26, 35 | Achiever, Practical, Power-Seeker, Determined | General | Boy | Italian, Latin |
| O | Olin | Olin — a radiant choice that means Holly tree | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | General | Boy | Scandinavian, Norse |
| O | Olindo | Olindo — rooted in tradition, associated with Protector of land | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | Italian, Latin |
| O | Oliphant | Oliphant — known for symbolizing Elephant and strength | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | General | Boy | English, Western |
| O | Olis | Olis — carrying the essence of Noble and wise | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | African |
| O | Oliveanthan | Oliveanthan — a timeless choice symbolizing Strong as olive | 4 | Rahu (Uranus) | Saturday | Grey | 4, 13, 22, 31 | Organized, Hardworking, Loyal, Trustworthy | General | Boy | African |
| O | Oliver | Oliver — treasured for its meaning: Olive tree | 9 | Mars | Tuesday | Maroon | 9, 18, 27, 36 | Visionary, Courageous, Charitable, Generous | General | Boy | Latin |
| O | Oliverio | Oliverio — an inspiring name associated with Olive bearer | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | Spanish, Latin |
| O | Olivier | Olivier — known for symbolizing Olive tree | 9 | Mars | Tuesday | Maroon | 9, 18, 27, 36 | Visionary, Courageous, Charitable, Generous | General | Boy | French, Latin |
| O | Oliwa | Oliwa — a poetic name signifying Olive tree | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | Slavic |
| O | Ollie | Ollie — a poetic name signifying Olive tree | 8 | Saturn | Saturday | Black | 8, 17, 26, 35 | Achiever, Practical, Power-Seeker, Determined | General | Boy | English, Western |
| O | Olliver | Olliver — cherished for its connection to Olive tree | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | General | Boy | English, Western |
| O | Ollyver | Ollyver — a poetic name signifying Olive tree | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | English, Western |
| O | Olney | Olney — a graceful name meaning From the only town | 8 | Saturn | Saturday | Black | 8, 17, 26, 35 | Achiever, Practical, Power-Seeker, Determined | General | Boy | English, Western |
| O | Olo | Olo — admired for representing Noble heart | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | African |
| O | Olorun | Olorun — evoking the qualities of Almighty God | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | General | Boy | African |
| O | Olsen | Olsen — shining with the meaning of Son of Ole | 2 | Moon | Monday | White | 2, 11, 20, 29 | Caring, Patient, Mediator, Supportive | General | Boy | Scandinavian, Norse |
| O | Olson | Olson — celebrated for symbolizing Son of Olaf | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | General | Boy | Scandinavian, Norse |