| Name | M/F | Meaning |
|---|---|---|
| Oberon | ![]() |
Meaning : Noble Bear Used in : Australian, German, French, German, Shakespearean |
| Ocean | ![]() |
Meaning : Used in : Australian, Greek, French, Greek, African, Australian |
| Octavin | ![]() |
Meaning : Used in : French, French |
| Odahingum ogin | ![]() |
Meaning : Used in : Native American |
| Oddrun | ![]() |
Meaning : New Point Used in : Swedish |
| Odelin | ![]() |
Meaning : Used in : French, French, German |
| Odelyn | ![]() |
Meaning : In Anglo meaning is : Little wealthy one Used in : Greek, Anglo |
| Oden | ![]() |
Meaning : Used in : Australian, German, Swedish, Australian |
| Odin | ![]() |
Meaning : Supreme God Used in : American, Anglo, Australian, Scandinavian, British, Danish, English, French, German, Norse, Scandinavian, Swedish |
| Odion | ![]() |
Meaning : Used in : African, Egyptian, Nigerian, African |
| Ogbegun | ![]() |
Meaning : Used in : African, African |
| Ogien | ![]() |
Meaning : Fire, Flame Used in : Polish |
| Ogin | ![]() |
Meaning : Wild Rose Used in : Native American |
| Ogun | ![]() |
Meaning : Used in : African, Australian, German, German |
| Ohan | ![]() |
Meaning : Used in : Armenian, Japanese |
| Oilan | ![]() |
Meaning : Used in : Australian |
| Oistin | ![]() |
Meaning : Venerable Used in : Hindu, Irish, Irish, Latin |
| Ok-sun | ![]() |
Meaning : Used in : Korean |
| Okon | ![]() |
Meaning : Used in : African, Basque |
| Okosiyen | ![]() |
Meaning : Used in : African |
| Oksan | ![]() |
Meaning : Used in : German, Australian |
| Olan | ![]() |
Meaning : Used in : American, Kurdish, French, Irish, Australian |
| Oldwin | ![]() |
Meaning : Special Friend Used in : English, American, British |
| Oldwyn | ![]() |
Meaning : Special Friend Used in : English, American, British |
| Olfien | ![]() |
Meaning : Used in : Netherlands |
| Olin | ![]() |
Meaning : Of The Ancestors Used in : American, Australian, Chinese, Scandinavian, British, Czechoslovakian, English, German, Norse, Scandinavian, Australian |
| Olivia-alison | ![]() |
Meaning : Used in : Australian |
| Olivian | ![]() |
Meaning : Used in : Australian |
| Ollisson | ![]() |
Meaning : Used in : Australian |
| Olliven | ![]() |
Meaning : Used in : Australian |
| Ollwyn | ![]() |
Meaning : Used in : Australian |
| Oluwasegun | ![]() |
Meaning : Used in : African |
| Oluwatoyin | ![]() |
Meaning : Used in : African |
| Olvun | ![]() |
Meaning : Used in : Australian |
| Olwyn | ![]() |
Meaning : In welsh meaning is : White footprint. Used in : Australian |
| Onenn | ![]() |
Meaning : Used in : French |
| Onnen | ![]() |
Meaning : Used in : French, French |
| Oota dabun | ![]() |
Meaning : Day Star. Used in : Native American |
| Oran | ![]() |
Meaning : Sorrowful, Sorrow, Saint Used in : American, Hawaiian, Australian, Hebrew, Irish, British, Celtic, English, Gaelic, Irish |
| Oranian | ![]() |
Meaning : Used in : Australian |
| Orapan | ![]() |
Meaning : Used in : Thai |
| Orawin | ![]() |
Meaning : Used in : English, British |
| Ordrun | ![]() |
Meaning : Used in : German |
| Oreion | ![]() |
Meaning : Used in : Greek |
| Orelon | ![]() |
Meaning : Ear Used in : American, African |
| Orhan | ![]() |
Meaning : Used in : Australian, Turkish, French, German, Australian |
| Oriann | ![]() |
Meaning : Used in : Latin |
| Orien | ![]() |
Meaning : Used in : Australian, Greek, Australian |
| Orienn | ![]() |
Meaning : Used in : Australian |
| Origen | ![]() |
Meaning : Used in : British, English, Australian |
| Orin | ![]() |
Meaning : Used in : American, Australian, Hebrew, Celtic, Gaelic, Greek, Irish, Australian |
| Orion | ![]() |
Meaning : Used in : American, Australian, Chinese, Japanese, French, Greek, Australian |
| Orlain | ![]() |
Meaning : Used in : Greek, African |
| Ornan | ![]() |
Meaning : That Rejoices. Used in : Biblical |
| Ortrun | ![]() |
Meaning : Used in : German |
| Osakun | ![]() |
Meaning : Used in : Basque |
| Osen | ![]() |
Meaning : Thousand Used in : Japanese |
| Oshen | ![]() |
Meaning : Used in : Australian |
| Oshin | ![]() |
Meaning : Used in : Armenian, Australian, Japanese |
| Oshun | ![]() |
Meaning : Used in : Australian |
| Otchigin | ![]() |
Meaning : Used in : Mongolian, Mongolian |
| Ouin | ![]() |
Meaning : Used in : Latin |
| Oulin | ![]() |
Meaning : Used in : German, Dutch |
| Ourra-tul-'ain | ![]() |
Meaning : Delight Of Eye, Darling. Used in : Arabic |
| Ouyen | ![]() |
Meaning : Used in : Australian |
| Overton | ![]() |
Meaning : Town High On A Hill, Upper Town Used in : Jamaican, British, English, Jamaican |
| Owen | ![]() |
Meaning : Used in : American, Australian, British, Celtic, Danish, Dutch, English, French, German, Greek, Irish, Jamaican, Swedish, Welsh, Australian |
| Oyugun | ![]() |
Meaning : Used in : Mongolian, Mongolian |
| Ozcan | ![]() |
Meaning : Used in : Australian, German, Australian, Chinese |
| Ozden | ![]() |
Meaning : Used in : Australian, Australian |
| Ozen | ![]() |
Meaning : Used in : Australian, Australian |
| Ozge-helin | ![]() |
Meaning : Used in : Australian |
| Ozgen | ![]() |
Meaning : Used in : Australian |
| Ozgun | ![]() |
Meaning : Used in : Australian, Australian |
| Ozjan | ![]() |
Meaning : Used in : Australian, Australian |
| Ozlen | ![]() |
Meaning : Used in : Australian, Australian |
| Ozvan | ![]() |
Meaning : Used in : French |