| Osileani | Polynesian | To speak for the last time |  |  |
| Oskar | German | German cognate of the English Osca.. | | |
| Oskar | Scandinavia.. | Scandinavian cognate of Oscar (spea.. | | |
| Oskar | Norwegian | Meaning "divine spearman." Notable .. | | |
| Osman | Polish | Polish form of the Scandinavian Asm.. |  | |
| Osman | Afghan | The name of the founder of the Otto.. | | |
| Osmar | English | Meaning "divine" or "wonderful."
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| Osmond | English | From the Old English Osmund (protec.. | | |
| Osric | English | Meaning "divine ruler." | | |
| Ossian | Irish | Anglicized form of Oisin (fawn). Se.. | | |
| Ossiolach.. | Native Amer.. | Singing eagle. Creek | | |
| Osvaldo | Spanish | A form of the name Oswald, meanin.. |  | |
| Oswald | German | A borrowing from the English, Oswal.. | | |
| Oswald | English | Meaning "God's power." | | |
| Oswin | English | Revival of the Old English Oswin (a.. | | |
| Oszkar | Hungarian | Hungarian form of Oscar, a name d.. | | |
| Ota | Slovak | Czech form of the German Otto.. | | |
| Ota | Czech | This is an auspicious name meaning .. | | |
| Otadan | Native Amer.. | Meaning "abundant." Source unknown... | | |
| Otaktay | Native Amer.. | Meaning "kills many" or "strikes ma.. | | |
| Otavio | Portuguese | A form of Octavius, meaning "eigh.. | | |
| Otee | Native Amer.. | Emathla He makes sense. Seminole | | |
| Otek | Polish | A form of die German name Otto.. | | |
| Otello | Spanish | A form of the German name Otto.. | | |
| Otetiani | Native Amer.. | He is prepared. Iroquois | | |
| Othao | Portuguese | Portuguese cognate of Othello (rich.. | | |
| Othman | German | A name that means "wealthy."
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| Othniel | Hebrew | Lion of God, strength of God. The n.. | | |
| Otieno | Kenyan | Meaning "born at night." Dalmas Oti.. | | |
| Otokar | Slovak | From the German Ottokar, an evoluti.. | | |
| Otskai | Native Amer.. | Going out. Nez Perce | | |
| Otstotpoo | Native Amer.. | Fire body. Nez Perce | | |
| Ottab | Nigerian | Meaning "a thin baby." Isaac Rogana.. | | |
| Ottar | Norwegian | This name signifies "point warrior".. | | |
| Ottavio | Italian | From the Latin Octavius, which is d.. | | |
