| Name | M/F | Meaning |
|---|---|---|
| Obialo | ![]() |
Meaning : Used in : African, African |
| Oboro | ![]() |
Meaning : Used in : Japanese |
| Ochiyo | ![]() |
Meaning : Used in : Japanese |
| Odacho | ![]() |
Meaning : Used in : African |
| Odaro | ![]() |
Meaning : I Am Contented Used in : Nigerian, Nigerian |
| Odunayo | ![]() |
Meaning : My Year Of Joy Oluwarotimi Odunayo Akeredolu - Senior Advocate Of Nigeria Who Became President Of The Nigerian Bar Association In 2008. Used in : Nigerian, Nigerian |
| Ogiko | ![]() |
Meaning : Used in : Japanese |
| Ogo | ![]() |
Meaning : Used in : African, African |
| Ohnicio | ![]() |
Meaning : Honor Used in : Irish |
| Ohto | ![]() |
Meaning : Bear Used in : Finnish |
| Oianko | ![]() |
Meaning : Used in : Basque |
| Ojiugo | ![]() |
Meaning : Used in : African |
| Ojo | ![]() |
Meaning : Used in : African, Japanese |
| Okaifo | ![]() |
Meaning : Used in : African |
| Okaitso | ![]() |
Meaning : Used in : African |
| Okiko | ![]() |
Meaning : Used in : Japanese |
| Oko | ![]() |
Meaning : Used in : African, Ghanaian, Japanese, Japanese |
| Okolo | ![]() |
Meaning : Used in : African |
| Olatokunbo | ![]() |
Meaning : Used in : African, African |
| Ollano | ![]() |
Meaning : Used in : Basque |
| Olokko | ![]() |
Meaning : Holy, Blessed Used in : Finnish |
| Olubayo | ![]() |
Meaning : Greatest Joy Used in : African, African |
| Olufunmilayo | ![]() |
Meaning : God Gives Me Joy Used in : African |
| Omako | ![]() |
Meaning : Used in : Japanese |
| Ominotago | ![]() |
Meaning : Beautiful Voice. Used in : Native American |
| Omorfo | ![]() |
Meaning : Used in : Australian |
| Onaedo | ![]() |
Meaning : Used in : African |
| Onervo | ![]() |
Meaning : Aftermath Used in : Finnish |
| Onno | ![]() |
Meaning : Used in : Australian, Dutch, German, Netherlands, Dutch |
| Ono | ![]() |
Meaning : Grief Or Strength Or Iniquity Of Him. Non-gerderized Biblical Name. Used in : Biblical |
| Onyanko | ![]() |
Meaning : Used in : Japanese |
| Oobako | ![]() |
Meaning : Used in : Japanese |
| Oraefo | ![]() |
Meaning : Used in : African |
| Orino | ![]() |
Meaning : Used in : Japanese |
| Ornello | ![]() |
Meaning : Used in : Australian, Australian |
| Oro | ![]() |
Meaning : Used in : Spanish, Basque |
| Orrao | ![]() |
Meaning : Used in : Basque |
| Orvo | ![]() |
Meaning : Violet, Pansy Used in : Finnish |
| Osako | ![]() |
Meaning : Used in : Japanese |
| Osayioniwabo | ![]() |
Meaning : God Will Help Us Used in : African |
| Ostrogotho | ![]() |
Meaning : Used in : Gothic |
| Otito | ![]() |
Meaning : Used in : African, African |
| Otoko | ![]() |
Meaning : Used in : Japanese |
| Otsuko | ![]() |
Meaning : Used in : Japanese |
| Ouko | ![]() |
Meaning : Used in : Japanese |
| Oyiofo | ![]() |
Meaning : Used in : African |
| Oyo | ![]() |
Meaning : Used in : African |
| Ozo | ![]() |
Meaning : Used in : African, African |
| Ozoro | ![]() |
Meaning : Used in : African |