| Name | M/F | Meaning |
|---|---|---|
| Obiang | ![]() |
Meaning : Used in : African |
| Obong | ![]() |
Meaning : God/king Enefiok Udo-Obong-Nigerian Sprinter Who Has Won A Bronze Medal In 4 X 400 Metres Relay At The 2004 Olympics. Used in : Nigerian |
| Ochieng | ![]() |
Meaning : Born In The Daytime (luo) Used in : African, Kenyan |
| Oding | ![]() |
Meaning : Used in : African |
| Offiong | ![]() |
Meaning : Moon. Richard Offiong- English Footballer . Used in : Nigerian |
| Oighrig | ![]() |
Meaning : Used in : Greek, Greek |
| Oilleog | ![]() |
Meaning : A Sprite, Elf Used in : Irish |
| Ojwang | ![]() |
Meaning : Survived Despite Neglect (luo) Used in : African, Kenyan |
| Okang | ![]() |
Meaning : Used in : African |
| Olaf-georg | ![]() |
Meaning : Used in : German |
| Olaf-hartwig | ![]() |
Meaning : Used in : German |
| Oldwig | ![]() |
Meaning : Used in : German |
| Oleg | ![]() |
Meaning : In russian meaning is : Holy. Used in : Australian, Chinese, Czechoslovakian, Danish, Finnish, French, German, Polish, Russian, Slavic, Swedish, Australian |
| Ollaneg | ![]() |
Meaning : From Olney Used in : British, English |
| Olof-henning | ![]() |
Meaning : Used in : German |
| Oneg | ![]() |
Meaning : Used in : Hebrew, French |
| Ongweng | ![]() |
Meaning : Born During The Time Of White Ants (luo Origin ) Used in : African, Kenyan |
| Onnig | ![]() |
Meaning : Used in : Armenian |
| Orang | ![]() |
Meaning : Wisdom Used in : Afghan, Persian, Iranian |
| Oriyg | ![]() |
Meaning : Son Of Valthjof. Used in : Norse |
| Orlyg | ![]() |
Meaning : Used in : Norse |
| Othong | ![]() |
Meaning : Used in : Thai, Australian |
| Otto-georg | ![]() |
Meaning : Used in : German |
| Otto-hartwig | ![]() |
Meaning : Used in : German |
| Otto-henning | ![]() |
Meaning : Used in : German |
| Otto-ludwig | ![]() |
Meaning : Used in : German |
| Otto-wolfgang | ![]() |
Meaning : Used in : German |
| Owrang | ![]() |
Meaning : Used in : Australian |