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 | Omkrish | Omkrish — an inspiring name associated with Om and Krishna | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | Hindu | Boy | Indian, Sanskrit |
| O | Ommar | Ommar — evoking the qualities of Flourishing and long life | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | Muslim | Boy | Arabic, Urdu, Islamic |
| O | Omodayo | Omodayo — evoking the qualities of Joy has arrived | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | General | Boy | African |
| O | Omoegbha | Omoegbha — a radiant choice that means Blessed child of God | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | General | Boy | African |
| O | Omoike | Omoike — treasured for its meaning: Child of wisdom | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | General | Boy | African |
| O | Omonegho | Omonegho — admired for representing Child of wealth | 2 | Moon | Monday | White | 2, 11, 20, 29 | Caring, Patient, Mediator, Supportive | General | Boy | African |
| O | Omonego | Omonego — shining with the meaning of Child of prosperity | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | General | Boy | African |
| O | Omoowo | Omoowo — known for symbolizing Child of honor | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | African |
| O | Omorede | Omorede — carrying the essence of Child of victory | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | General | Boy | African |
| O | Omorogie | Omorogie — embodying qualities of Noble child | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | General | Boy | African |
| O | Omosome | Omosome — a poetic name signifying Precious child | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | General | Boy | African |
| O | Omosomhe | Omosomhe — valued for its essence of God’s child | 4 | Rahu (Uranus) | Saturday | Grey | 4, 13, 22, 31 | Organized, Hardworking, Loyal, Trustworthy | General | Boy | African |
| O | Omotayo | Omotayo — admired as it reflects Joy has returned | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | General | Boy | African |
| O | Omowumi | Omowumi — evoking the qualities of Child is cherished | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | African |
| O | Omparkash | Omparkash — shining with the meaning of Sacred light of Om | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | Hindu | Boy | Indian, Sanskrit |
| O | Ompati | Ompati — a unique name that means Protector of Om | 2 | Moon | Monday | White | 2, 11, 20, 29 | Caring, Patient, Mediator, Supportive | Hindu | Boy | Indian, Sanskrit |
| O | Omprakash | Omprakash — a poetic name signifying Divine light of Om | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | Hindu | Boy | Indian, Sanskrit |
| O | Omprasad | Omprasad — admired for representing Sacred gift of Om | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | Hindu | Boy | Indian, Sanskrit |
| O | Omran | Omran — echoing the idea of Prosperity and life | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | Muslim | Boy | Arabic, Urdu, Islamic |
| O | Omrao | Omrao — a poetic name signifying Noble protector | 8 | Saturn | Saturday | Black | 8, 17, 26, 35 | Achiever, Practical, Power-Seeker, Determined | Hindu | Boy | Indian, Sanskrit |
| O | Omri | Omri — a distinguished name linked to Sheaf and prosperity | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | Jewish | Boy | Hebrew |
| O | Omsai | Omsai — a radiant choice that means Om and Sai | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | Hindu | Boy | Indian, Sanskrit |
| O | Omswaroop | Omswaroop — a distinguished name linked to Form of Om | 9 | Mars | Tuesday | Maroon | 9, 18, 27, 36 | Visionary, Courageous, Charitable, Generous | Hindu | Boy | Indian, Sanskrit |
| O | Omveer | Omveer — celebrated for symbolizing Brave like Om | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | Hindu | Boy | Indian, Sanskrit |
| O | On | On — a charming name with roots in Strength and vigor | 2 | Moon | Monday | White | 2, 11, 20, 29 | Caring, Patient, Mediator, Supportive | Jewish | Boy | Hebrew |
| O | Onacona | Onacona — often chosen for its link with White owl | 9 | Mars | Tuesday | Maroon | 9, 18, 27, 36 | Visionary, Courageous, Charitable, Generous | General | Boy | Native American |
| O | Onam | Onam — a charming name with roots in Festival of harvest | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | Hindu | Boy | Indian, Sanskrit |
| O | Onan | Onan — carrying the essence of Strength and prosperity | 8 | Saturn | Saturday | Black | 8, 17, 26, 35 | Achiever, Practical, Power-Seeker, Determined | Jewish | Boy | Hebrew |
| O | Onani | Onani — admired for representing Prosperity and vigor | 8 | Saturn | Saturday | Black | 8, 17, 26, 35 | Achiever, Practical, Power-Seeker, Determined | Jewish | Boy | Hebrew |
| O | Onaona | Onaona — a radiant choice that means Soft fragrance | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | Hawaiian, Polynesian |
| O | Ond | Ond — a classic choice tied to Spirit and breath | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | Norse, Old Norse |
| O | Ondre | Ondre — a distinguished name linked to Brave man | 2 | Moon | Monday | White | 2, 11, 20, 29 | Caring, Patient, Mediator, Supportive | General | Boy | Slavic |
| O | Ondrej | Ondrej — often chosen for its link with Manly and strong | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | General | Boy | Slavic |
| O | Ondrij | Ondrij — loved for the sense of Protector of men | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | General | Boy | Slavic |
| O | Ondro | Ondro — shining with the meaning of Brave protector | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | General | Boy | Slavic |
| O | Oneal | Oneal — a charming name with roots in Champion | 2 | Moon | Monday | White | 2, 11, 20, 29 | Caring, Patient, Mediator, Supportive | General | Boy | Celtic, Irish |
| O | Oneil | Oneil — a timeless choice symbolizing Descendant of Niall | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | Celtic, Irish |
| O | Onel | Onel — an inspiring name associated with Light of God | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | Spanish, Latin |
| O | Onesimo | Onesimo — echoing the idea of Profitable and helpful | 9 | Mars | Tuesday | Maroon | 9, 18, 27, 36 | Visionary, Courageous, Charitable, Generous | General | Boy | Greek |
| O | Onesimus | Onesimus — often chosen for its link with Useful and faithful | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | General | Boy | Greek |
| O | Oney | Oney — often chosen for its link with Unique one | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | General | Boy | English, Western |
| O | Oni | Oni — evoking the qualities of Born on holy ground | 2 | Moon | Monday | White | 2, 11, 20, 29 | Caring, Patient, Mediator, Supportive | General | Boy | African |
| O | Onipede | Onipede — carrying the essence of God guides me | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | General | Boy | African |
| O | Onkar | Onkar — shining with the meaning of Om sound | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | Hindu | Boy | Indian, Sanskrit |
| O | Onkara | Onkara — a poetic name signifying Sacred syllable Om | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | Hindu | Boy | Indian, Sanskrit |
| O | Onny | Onny — admired for representing Graceful and kind | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | General | Boy | English, Western |
| O | Onofre | Onofre — a poetic name signifying Defender of peace | 1 | Sun | Sunday | Red | 1, 10, 19, 28 | Goal-Oriented, Fearless, Motivator, Pioneering | General | Boy | Spanish, Latin |
| O | Onofrio | Onofrio — rooted in tradition, associated with Defender of peace | 2 | Moon | Monday | White | 2, 11, 20, 29 | Caring, Patient, Mediator, Supportive | General | Boy | Italian, Latin |
| O | Onosiorena | Onosiorena — a classic choice tied to God’s gift | 8 | Saturn | Saturday | Black | 8, 17, 26, 35 | Achiever, Practical, Power-Seeker, Determined | General | Boy | African |
| O | Onosiowagbe | Onosiowagbe — a timeless choice symbolizing God’s will | 8 | Saturn | Saturday | Black | 8, 17, 26, 35 | Achiever, Practical, Power-Seeker, Determined | General | Boy | African |
| O | Onoso | Onoso — echoing the idea of Child of destiny | 6 | Venus | Friday | Pink | 6, 15, 24, 33 | Romantic, Responsible, Sympathetic, Warm | General | Boy | African |
| O | Onslow | Onslow — reflecting the spirit of From the hill | 8 | Saturn | Saturday | Black | 8, 17, 26, 35 | Achiever, Practical, Power-Seeker, Determined | General | Boy | English, Western |
| O | Onufry | Onufry — a timeless choice symbolizing Defender of peace | 9 | Mars | Tuesday | Maroon | 9, 18, 27, 36 | Visionary, Courageous, Charitable, Generous | General | Boy | Slavic |
| O | Onur | Onur — an inspiring name associated with Honor and pride | 5 | Mercury | Wednesday | Green | 5, 14, 23, 32 | Spontaneous, Traveler, Clever, Adaptable | Muslim | Boy | Turkish |
| O | Onwaochi | Onwaochi — celebrated for symbolizing Child of light | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | General | Boy | African |
| O | Onwoachi | Onwoachi — a poetic name signifying God’s child | 7 | Ketu (Neptune) | Monday | Light Green | 7, 16, 25, 34 | Wise, Knowledge-Seeker, Deep Thinker, Introspective | General | Boy | African |
| O | Onyebuchi | Onyebuchi — a distinguished name linked to Who is greater than God | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | General | Boy | African |
| O | Onyoka | Onyoka — a charming name with roots in Noble one | 9 | Mars | Tuesday | Maroon | 9, 18, 27, 36 | Visionary, Courageous, Charitable, Generous | General | Boy | African |
| O | Oojam | Oojam — valued for its essence of Excellence and order | 9 | Mars | Tuesday | Maroon | 9, 18, 27, 36 | Visionary, Courageous, Charitable, Generous | Hindu | Boy | Indian, Sanskrit |
| O | Oommen | Oommen — admired as it reflects Born of Christ | 3 | Jupiter | Thursday | Yellow | 3, 12, 21, 30 | Imaginative, Social, Joyful, Expressive | Christian | Boy | Western, English |