| Name | M/F | Meaning |
|---|---|---|
| Odlegly | ![]() |
Meaning : Far Away, Long Ago Used in : Polish |
| Odo | ![]() |
Meaning : Wealth Used in : British, English, French, German, Polish, Teutonic |
| Odwaga | ![]() |
Meaning : Courage Used in : Polish |
| Ofim | ![]() |
Meaning : God Will Establish Used in : Polish |
| Ogromny | ![]() |
Meaning : Tremendous, Huge Used in : Polish |
| Ojczyzna | ![]() |
Meaning : Homeland Used in : Polish |
| Okazja | ![]() |
Meaning : Opportunity Used in : Polish |
| Oktawiusz | ![]() |
Meaning : Eighth Born Used in : Polish |
| Oktawjan | ![]() |
Meaning : Eighth Used in : Polish |
| Ola | ![]() |
Meaning : Defender Of Mankind Used in : African, Australian, Finnish, German, Norse, Polish, Russian, Scandinavian, Swedish, British, English, Norse, Polish, Scandinavian, American, African, Australian |
| Olaf | ![]() |
Meaning : Descendants, Ancestor Used in : Australian, Swedish, Danish, French, German, Irish, Norse, Norwegian, Polish, Scandinavian, Swiss, Teutonic |
| Olbrecht | ![]() |
Meaning : Noble, Bright, Famous Used in : German, Polish |
| Olees | ![]() |
Meaning : Defender Of Mankind Used in : Polish |
| Oleg | ![]() |
Meaning : Sacred, Or Blessed Used in : Australian, Chinese, Czechoslovakian, Danish, Finnish, French, German, Polish, Russian, Slavic, Swedish, Australian |
| Oleksander | ![]() |
Meaning : Defender Of Mankind Used in : Greek, Polish, Ukrainian |
| Oles | ![]() |
Meaning : Defender Of Mankind Used in : Greek, Polish |
| Olgierd | ![]() |
Meaning : Fame Used in : Australian, Polish |
| Oliwjer | ![]() |
Meaning : Olive Tree Used in : Polish |
| Olus | ![]() |
Meaning : Protector Of Man, Defending Man Used in : Greek, Polish |
| Ondrej | ![]() |
Meaning : Manly, Brave, Strong Used in : Australian, Czechoslovakian, Czech, German, Polish |
| Onufry | ![]() |
Meaning : Peaceful Strenth, Protector Of Man Used in : Polish |
| Oskar | ![]() |
Meaning : Divine Spear, Spear Of The Gods Used in : Australian, British, Czechoslovakian, Danish, English, Finnish, German, Norse, Polish, Scandinavian, Swedish |
| Osman | ![]() |
Meaning : God's Protection Used in : American, Afghan, Arabic, Hindu, Malaysian, Muslim, British, Danish, English, French, German, Polish, Scandinavian |
| Ostasz | ![]() |
Meaning : Used in : Greek, Polish |
| Oswald | ![]() |
Meaning : God's Power, Divine Power Used in : American, Anglo, Australian, British, Danish, English, French, German, Polish, Shakespearean, Swedish, Teutonic, Dutch |
| Otek | ![]() |
Meaning : Wealthy, Fortune Used in : Czechoslovakian, German, Polish |
| Otto | ![]() |
Meaning : Wealth Used in : American, Australian, Japanese, British, Danish, Dutch, English, Finnish, French, German, Italian, Polish, Swedish, Teutonic |
| Otward | ![]() |
Meaning : Used in : German, Polish |