| Orion | Mythology a.. | From Greek and Roman mythology, Ori.. |  |  |
| Orlando | Italian | Italian cognate of Roland, which is.. | | |
| Orlando | German | Meaning "famous land." Baseball pla.. | | |
| Orman | German | This name means "mariner" or "seama.. |  | |
| Ormond | English | Meaning "Bear mountain."
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| Oro | Spanish | Meaning "golden."
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| Oron | Hebrew | Light | | |
| Orpheas | Greek | In Greek mythology, a Thracian musi.. | | |
| Orrick | English | Signifying "old oak tree."
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| Orrin | English | "River." Senator Orrin Hatch repres.. | | |
| Orson | English | Derived from the French nickname Ou.. | | |
| Orton | English | Meaning "shore town."
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| Orunjan | Nigerian | Meaning "born under the midday sun... | | |
| Orville | American | Of debated origin, some believe it .. | | |
| Orville | English | Of debated origin, some believe Orv.. | | |
| Orville | French | Meaning "golden village." Orville W.. | | |
| Orvin | English | Meaning "spear friend." | | |
| Osagie | Beninese | Meaning "sent by God." | | |
| Osakwe | African | God agrees. Benin, Nigeria | | |
| Osaliar | Nigerian | Meaning "God hears."
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| Osayaba | Nigerian | Meaning "God forgives."
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| Osayimwes.. | African | God made me complete. Benin, Nigeri.. | | |
| Osaze | Nigerian | Meaning "whom God likes."
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| Osazema | Beninese | For religious-minded families, this.. | | |
| Osbert | English | Meaning "divine" or "bright."
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| Osborn | English | Evolution of the Old English Osbeor.. | | |
| Oscar | English | From the Old English Osgar (god spe.. | | |
| Oscar | Irish | Derived from the Gaelic oscar (cham.. |  | |
| Oscar | Scottish | From the Old English Osgar, a compo.. | | |
| Oscar | Portuguese | Meaning "divine spear." | | |
| Osceola | Native Amer.. | Creek name derived from asi (black .. | | |
| Osei | African | Agyadini name meaning "noble, honor.. | | |
| Osei | Ghanaian | Meaning "noble." Bafour Osei Akoto .. | | |
| Osgood | English | Meaning "divine goth."
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| Oshea | Hebrew | Helped by God, saved by God | | |
