| Name | M/F | Meaning |
|---|---|---|
| Oatbald | ![]() |
Meaning : Used in : Dutch, German |
| Odaccar | ![]() |
Meaning : Used in : Dutch, German |
| Odalric | ![]() |
Meaning : Used in : British, Dutch, English, French, German |
| Odbald | ![]() |
Meaning : Used in : Dutch, German |
| Ode | ![]() |
Meaning : In african meaning is : Born on the road (Benin origin ) Used in : African, Dutch, French, German, Teutonic, African, Egyptian |
| Odilbald | ![]() |
Meaning : Used in : Dutch, German |
| Odlef | ![]() |
Meaning : Used in : Dutch, German |
| Odrad | ![]() |
Meaning : Used in : Dutch, German |
| Odulf | ![]() |
Meaning : Used in : Dutch, French, German |
| Oegerikus | ![]() |
Meaning : Used in : Dutch |
| Offo | ![]() |
Meaning : Used in : Dutch, German |
| Okeman | ![]() |
Meaning : Used in : Dutch, German |
| Okkert | ![]() |
Meaning : Used in : Dutch |
| Oliver | ![]() |
Meaning : In American meaning is : Olive tree Used in : American, Australian, Chinese, British, Danish, Dutch, English, Finnish, French, German, Irish, Jamaican, Latin, Norse, Swedish, Swiss, Australian |
| Olivier | ![]() |
Meaning : In french meaning is : From the olive tree Used in : Australian, French, British, Dutch, English, French, German, Latin, Shakespearean, Swiss, Australian |
| Olric | ![]() |
Meaning : Used in : Dutch, German |
| Onno | ![]() |
Meaning : Used in : Australian, Dutch, German, Netherlands, Dutch |
| Oodhelm | ![]() |
Meaning : Used in : Dutch, German |
| Oodwerc | ![]() |
Meaning : Used in : Dutch, German |
| Oosterveer | ![]() |
Meaning : Used in : Dutch |
| Orbalt | ![]() |
Meaning : Used in : Dutch, German |
| Orian | ![]() |
Meaning : Used in : Australian, Dutch |
| Oscar | ![]() |
Meaning : In American meaning is : God's spear Used in : American, Australian, Chinese, British, Celtic, Danish, Dutch, English, French, German, Irish, Jamaican, Italian, Norse, Norwegian, Portuguese, Scandinavian, Swedish, Swiss, Australian, Dutch |
| Osdei | ![]() |
Meaning : Used in : Dutch, German |
| Osger | ![]() |
Meaning : Used in : Dutch, German |
| Ostekin | ![]() |
Meaning : Used in : Dutch, German |
| Ostlef | ![]() |
Meaning : Used in : Dutch, German |
| Otger | ![]() |
Meaning : Used in : Dutch, French, German |
| Otravan | ![]() |
Meaning : Used in : Dutch, German |
| Otto | ![]() |
Meaning : In american meaning is : wealth, fortune. Used in : American, Australian, Japanese, British, Danish, Dutch, English, Finnish, French, German, Italian, Polish, Swedish, Teutonic |
| Owen | ![]() |
Meaning : In American meaning is : Well born Used in : American, Australian, British, Celtic, Danish, Dutch, English, French, German, Greek, Irish, Jamaican, Swedish, Welsh, Australian |
| Ozelin | ![]() |
Meaning : Used in : Dutch, German |