| Name | M/F | Meaning |
|---|---|---|
| Olivas | ![]() |
Meaning : Used in : French |
| Oliver-klaus | ![]() |
Meaning : Used in : German |
| Oliver-nils | ![]() |
Meaning : Used in : German |
| Oliverios | ![]() |
Meaning : Peaceful Used in : Latin, Spanish |
| Olivius | ![]() |
Meaning : Olive Tree Used in : Swedish |
| Olmes | ![]() |
Meaning : Used in : French, German |
| Olmidas | ![]() |
Meaning : Used in : French |
| Oloros | ![]() |
Meaning : Used in : Greek |
| Olus | ![]() |
Meaning : In Polish meaning is : Protector of man, Defending man Used in : Greek, Polish |
| Olympicus | ![]() |
Meaning : Used in : Greek |
| Olympiodoros | ![]() |
Meaning : Used in : Greek |
| Olympiodorus | ![]() |
Meaning : Used in : French |
| Olympus | ![]() |
Meaning : Used in : German |
| Omeros | ![]() |
Meaning : Used in : Australian |
| Omerus | ![]() |
Meaning : Used in : British, English |
| Omiros | ![]() |
Meaning : Used in : Australian |
| Onamakritos | ![]() |
Meaning : Used in : Greek |
| Onas | ![]() |
Meaning : Used in : French |
| Oncus | ![]() |
Meaning : Used in : Celtic |
| Ondrus | ![]() |
Meaning : In czech meaning is : Manly Used in : Czechoslovakian, Czech |
| Onerias | ![]() |
Meaning : Used in : French |
| Onerius | ![]() |
Meaning : Used in : French |
| Onesilos | ![]() |
Meaning : Used in : Greek |
| Onesimos | ![]() |
Meaning : Used in : French, Greek |
| Onesimus | ![]() |
Meaning : Profitable, Useful. Used in : Biblical, French, Greek, Latin |
| Onesiphorus | ![]() |
Meaning : Used in : Greek, Biblical |
| Onetas | ![]() |
Meaning : Used in : Greek |
| Onias | ![]() |
Meaning : Used in : French, Greek |
| Onidas | ![]() |
Meaning : Used in : French |
| Onilas | ![]() |
Meaning : Used in : French |
| Onildas | ![]() |
Meaning : Used in : French |
| Onilias | ![]() |
Meaning : Used in : French |
| Onilphas | ![]() |
Meaning : Used in : French |
| Onimus | ![]() |
Meaning : Used in : French, Latin |
| Onomastos | ![]() |
Meaning : Used in : Greek |
| Onoufrios | ![]() |
Meaning : Used in : Australian |
| Onuphrius | ![]() |
Meaning : Used in : German |
| Onuris | ![]() |
Meaning : Brings Back The Distant One. Used in : Egyptian |
| Onwnhs | ![]() |
Meaning : Used in : Greek |
| Ophelestes | ![]() |
Meaning : Used in : Greek |
| Opites | ![]() |
Meaning : Used in : Greek |
| Ops | ![]() |
Meaning : Used in : Latin, Greek |
| Optatus | ![]() |
Meaning : Used in : German |
| Opus | ![]() |
Meaning : Used in : French |
| Orcidas | ![]() |
Meaning : Used in : French |
| Orcus | ![]() |
Meaning : In latin meaning is : The mythical underworld Used in : Greek, Latin |
| Ordovs | ![]() |
Meaning : Used in : British, English |
| Oreias | ![]() |
Meaning : From The Mountain. Used in : Greek |
| Orens | ![]() |
Meaning : Used in : French |
| Oresteos | ![]() |
Meaning : Used in : Australian |
| Orestes | ![]() |
Meaning : In greek meaning is : Man of the mountain. Used in : Australian, Greek, Portuguese |
| Orestis | ![]() |
Meaning : Used in : Australian |
| Oresus | ![]() |
Meaning : Used in : Greek |
| Orges | ![]() |
Meaning : Used in : Greek |
| Orgillus | ![]() |
Meaning : Used in : Celtic |
| Oribasius | ![]() |
Meaning : Used in : Greek |
| Oris | ![]() |
Meaning : In hebrew meaning is : Tree Used in : Hindu, Hebrew, Tamil, Greek, Italian, Latin |
| Orius | ![]() |
Meaning : Used in : Greek |
| Orleans | ![]() |
Meaning : Used in : Australian, French |
| Ormos | ![]() |
Meaning : Like A Cliff Used in : Hungarian |
| Orodes | ![]() |
Meaning : Used in : Greek |
| Oroites | ![]() |
Meaning : Used in : Greek |
| Oros | ![]() |
Meaning : Citydweller, Educated Man Used in : Hungarian |
| Orpheus | ![]() |
Meaning : Beautiful Voice Used in : American, African, Australian, French, German, Greek, Jamaican |
| Orsilochus | ![]() |
Meaning : Used in : Greek |
| Orsiphantes | ![]() |
Meaning : Used in : Greek |
| Orsippus | ![]() |
Meaning : Used in : Greek |
| Ortas | ![]() |
Meaning : Used in : Kurdish |
| Orthaeus | ![]() |
Meaning : Used in : Greek |
| Orthros | ![]() |
Meaning : Guardian Of Geryon. Used in : Greek |
| Ortis | ![]() |
Meaning : Used in : Australian |
| Ortolfus | ![]() |
Meaning : Used in : German |
| Ortolphus | ![]() |
Meaning : Used in : German |
| Ortwinus | ![]() |
Meaning : Used in : German |
| Orwdhs | ![]() |
Meaning : Used in : Greek |
| Orys | ![]() |
Meaning : Used in : Australian |
| Orythroneus | ![]() |
Meaning : Used in : Greek |
| Osbernus | ![]() |
Meaning : Used in : British, English |
| Osbertus | ![]() |
Meaning : Used in : British, English |
| Osebertus | ![]() |
Meaning : Used in : British, English |
| Osgarus | ![]() |
Meaning : Used in : British, English |
| Osiris | ![]() |
Meaning : God Of The Dead. Used in : Egyptian, French |
| Oskar-markus | ![]() |
Meaning : Used in : German |
| Oskars | ![]() |
Meaning : Used in : Australian |
| Osroes | ![]() |
Meaning : Used in : Greek |
| Ostots | ![]() |
Meaning : Used in : Basque |
| Osuualdus | ![]() |
Meaning : Used in : British, English |
| Osuuoldus | ![]() |
Meaning : Used in : British, English |
| Oswinus | ![]() |
Meaning : Used in : British, English |
| Otes | ![]() |
Meaning : Used in : German |
| Otess | ![]() |
Meaning : Son Of Otto. Used in : British, English |
| Othes | ![]() |
Meaning : Used in : German |
| Othonas | ![]() |
Meaning : Used in : Australian |
| Otis | ![]() |
Meaning : Wealth Used in : American, Australian, British, English, German, Greek, Jamaican |
| Otoahhastis | ![]() |
Meaning : Used in : Native American |
| Otois | ![]() |
Meaning : Used in : German |
| Otokars | ![]() |
Meaning : In Teutonic meaning is : Rich. Used in : German, Teutonic |
| Otomars | ![]() |
Meaning : In Teutonic meaning is : Rich. Used in : German, Teutonic |
| Otos | ![]() |
Meaning : Keen Of Hearing. Used in : Greek |
| Otreus | ![]() |
Meaning : Used in : Greek |