| Name | M/F | Meaning |
|---|---|---|
| Oakes | ![]() |
Meaning : Dweller By The Oak Tree Used in : American, Anglo, English, British, English, Australian, British |
| Octavius | ![]() |
Meaning : Used in : American, African, Australian, French, Latin, British, Danish, English, French, German, Latin, Shakespearean |
| Odalis | ![]() |
Meaning : Wealthy Used in : American |
| Odalys | ![]() |
Meaning : Wealthy Used in : American, Chinese |
| Odias | ![]() |
Meaning : Used in : French, French |
| Ojas | ![]() |
Meaning : Energy, Power, Strength Used in : Hindu, Sanskrit, Malayalam, Marathi, Oriya, Sanskrit |
| Olburgis | ![]() |
Meaning : Used in : German, Dutch |
| Olimpias | ![]() |
Meaning : Used in : English, German, British |
| Olympas | ![]() |
Meaning : Heavenly. Used in : Biblical |
| Olympias | ![]() |
Meaning : Used in : German, Greek, Armenian |
| Onesiphorus | ![]() |
Meaning : Who Brings Profit. Used in : Greek, Biblical |
| Ons | ![]() |
Meaning : Used in : Arabic |
| Opis | ![]() |
Meaning : Used in : Latin |
| Ops | ![]() |
Meaning : Goddess Of Plenty Used in : Latin, Greek |
| Orabilis | ![]() |
Meaning : Used in : English, Italian, British |
| Oranous | ![]() |
Meaning : One Of The 9 Solar Plannets Used in : Persian, Iranian, Parsi |
| Orieldis | ![]() |
Meaning : Used in : German |
| Oris | ![]() |
Meaning : Used in : Hindu, Hebrew, Tamil, Greek, Italian, Latin |
| Orleans | ![]() |
Meaning : Used in : Australian, French |
| Orseis | ![]() |
Meaning : Used in : French |
| Osane - remedios | ![]() |
Meaning : Used in : Basque |
| Osiris | ![]() |
Meaning : Used in : Egyptian, French |
| Osterhildis | ![]() |
Meaning : Used in : German |
| Othilhildis | ![]() |
Meaning : Used in : German, Dutch |
| Otilia-frances | ![]() |
Meaning : A Combination Of Names Otilia And Frances. Used in : American |