| Name | M/F | Meaning |
|---|---|---|
| Onorfio | ![]() |
Meaning : Used in : Australian |
| Onorino | ![]() |
Meaning : Used in : Australian |
| Onorio | ![]() |
Meaning : Used in : French |
| Onovato | ![]() |
Meaning : Used in : French |
| Ontro | ![]() |
Meaning : Man, Warrior Used in : Finnish |
| Ontto | ![]() |
Meaning : Man, Warrior Used in : Finnish |
| Onwubiko | ![]() |
Meaning : Used in : African |
| Onwumbiko | ![]() |
Meaning : Used in : African |
| Onyango | ![]() |
Meaning : Born About Mid Day Used in : African, Kenyan |
| Ophelio | ![]() |
Meaning : Used in : French |
| Opilano | ![]() |
Meaning : Used in : Basque |
| Opilio | ![]() |
Meaning : Used in : French |
| Opiyo | ![]() |
Meaning : First Of Twins Used in : African, Kenyan |
| Opurbo | ![]() |
Meaning : Used in : Bengali |
| Orabuono | ![]() |
Meaning : Used in : Italian |
| Oralndo | ![]() |
Meaning : Used in : German |
| Oratio | ![]() |
Meaning : In latin meaning is : Timekeeper Used in : Italian, Latin |
| Orayio | ![]() |
Meaning : Used in : Australian |
| Orazio | ![]() |
Meaning : In latin meaning is : Timekeeper Used in : Australian, German, Greek, Italian, Latin |
| Orbó | ![]() |
Meaning : Citydweller, Educated Man Used in : Hungarian |
| Ordonho | ![]() |
Meaning : Used in : Portuguese |
| Orelio | ![]() |
Meaning : Used in : Australian |
| Oreno | ![]() |
Meaning : Used in : Australian |
| Oresto | ![]() |
Meaning : Used in : Australian, Greek |
| Orfeo | ![]() |
Meaning : Used in : Australian, Italian |
| Orfero | ![]() |
Meaning : Used in : Australian |
| Oriano | ![]() |
Meaning : Used in : Australian |
| Oringo | ![]() |
Meaning : Used in : African |
| Orinolo | ![]() |
Meaning : Used in : Italian |
| Orio | ![]() |
Meaning : Used in : Italian |
| Orito | ![]() |
Meaning : Used in : Japanese |
| Orkeeno | ![]() |
Meaning : Used in : Australian |
| Orkko | ![]() |
Meaning : Volet, Pansy Used in : Finnish |
| Orlandino | ![]() |
Meaning : Used in : Italian |
| Orlando | ![]() |
Meaning : Renowned In The Land Used in : American, African, Australian, Chinese, Danish, French, German, Italian, Latin, Shakespearean, Spanish, Teutonic |
| Orlondo | ![]() |
Meaning : In german meaning is : Renowned in the land. For... Used in : Australian, German, Italian, Spanish |
| Ormando | ![]() |
Meaning : Used in : Australian |
| Ormanno | ![]() |
Meaning : Used in : Italian |
| Ormondo | ![]() |
Meaning : French Form Of Herman : Army Man. Used in : French, German |
| Ornello | ![]() |
Meaning : Used in : Australian, Australian |
| Oro | ![]() |
Meaning : Golden. Used in : Spanish, Basque |
| Oronzo | ![]() |
Meaning : Used in : Italian |
| Orpo | ![]() |
Meaning : Lonely Used in : Finnish |
| Orsazio | ![]() |
Meaning : Used in : Australian |
| Orsino | ![]() |
Meaning : Little Bear. Used in : Italian, Latin, Shakespearean |
| Orso | ![]() |
Meaning : Used in : French, Italian |
| Ortensio | ![]() |
Meaning : Used in : Australian, French, Latin |
| Ortenzio | ![]() |
Meaning : Used in : Australian |
| Osagboro | ![]() |
Meaning : There Is Only One God Used in : African |
| Osahiko | ![]() |
Meaning : Used in : Japanese |
| Osano | ![]() |
Meaning : Used in : African |
| Osbaldo | ![]() |
Meaning : Divine Ruler Used in : American |
| Oscar-hugo | ![]() |
Meaning : Used in : German |
| Oscar-ricardo | ![]() |
Meaning : Used in : German |
| Osho | ![]() |
Meaning : Dear Used in : Marathi, Marathi |
| Oskar-hajo | ![]() |
Meaning : Used in : German |
| Oslvaldo | ![]() |
Meaning : Used in : Italian |
| Osmaro | ![]() |
Meaning : Used in : Australian |
| Osmo | ![]() |
Meaning : Young Man Used in : Finnish |
| Osmundo | ![]() |
Meaning : Used in : German |
| Oso | ![]() |
Meaning : Bear Used in : Finnish |
| Osogo | ![]() |
Meaning : The Osogo Bird Attended The Birth (was Seen) Used in : African, Kenyan |
| Osorio | ![]() |
Meaning : The Greatest Used in : Portuguese |
| Osvaldo | ![]() |
Meaning : God's Power Used in : American, Australian, Chinese, British, English, French, German, Italian, Latin, Portuguese |
| Oswaldo | ![]() |
Meaning : Divine Power. Used in : American, Chinese, British, English, German, Teutonic |
| Otaviano | ![]() |
Meaning : Used in : Australian |
| Otavio | ![]() |
Meaning : Eighth Used in : Portuguese |
| Otello | ![]() |
Meaning : Used in : Australian, French, German, Italian |
| Otero | ![]() |
Meaning : Used in : German |
| Othello | ![]() |
Meaning : In german meaning is : Prosperous. Used in : Australian, German, Shakespearean |
| Othenio | ![]() |
Meaning : Used in : German |
| Othiambo | ![]() |
Meaning : Born Late In The Evening Used in : African, Kenyan |
| Othieno | ![]() |
Meaning : Used in : African |
| Othmaro | ![]() |
Meaning : Used in : Australian |
| Otho | ![]() |
Meaning : Wealthy Used in : American, German, Latin |
| Otieno | ![]() |
Meaning : Born At Night Used in : African, Kenyan |
| Otilio | ![]() |
Meaning : Used in : German |
| Otito | ![]() |
Meaning : Used in : African, African |
| Oto | ![]() |
Meaning : In Teutonic meaning is : Rich. Used in : African, Czechoslovakian, German, Teutonic |
| Otoahnacto | ![]() |
Meaning : Bull Bear. Used in : Native American |
| Otohiko | ![]() |
Meaning : Used in : Japanese |
| Otojiro | ![]() |
Meaning : Used in : Japanese |
| Otomaro | ![]() |
Meaning : Used in : Japanese |
| Otorino | ![]() |
Meaning : Used in : Australian |
| Otrmondo | ![]() |
Meaning : French Form Of Herman : Army Man. Used in : French |
| Otsando | ![]() |
Meaning : Used in : Basque |
| Otsinto | ![]() |
Meaning : Used in : Bengali |
| Otso | ![]() |
Meaning : Bear Used in : Finnish |
| Otsoko | ![]() |
Meaning : Used in : Basque |
| Ottaviano | ![]() |
Meaning : Used in : Australian, French, Italian, Latin |
| Ottavio | ![]() |
Meaning : In latin meaning is : Born eighth Used in : Australian, French, Italian, Latin |
| Ottilio | ![]() |
Meaning : Used in : Australian |
| Ottilo | ![]() |
Meaning : Used in : Australian |
| Ottinello | ![]() |
Meaning : Used in : Italian |
| Otto | ![]() |
Meaning : Wealth, Fortune. Used in : American, Australian, Japanese, British, Danish, Dutch, English, Finnish, French, German, Italian, Polish, Swedish, Teutonic |
| Ottobono | ![]() |
Meaning : Used in : Italian |
| Ottobuono | ![]() |
Meaning : Used in : Italian |
| Ottolino | ![]() |
Meaning : Used in : Italian |
| Ottorino | ![]() |
Meaning : Used in : Australian, French, German, Italian |
| Ottoviano | ![]() |
Meaning : Used in : Australian |