| Girl | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| Boy | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| Girl | ||||||||||||
| A | B | C | D | E | F | G | H | I | J | K | L | M |
| N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| Boy | ||||||||||||
| A | B | C | D | E | F | G | H | I | J | K | L | M |
| N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| Name | Meaning | Gender | Numerology |
|---|---|---|---|
| Oberon | Elf Ruler High-born and Bearlike | Boy | 6 |
| Obert | Wealthy Bright | Boy | 6 |
| Ocean | Titan who Rules Outer Sea | Boy | 2 |
| Octa | TBD | Boy | 3 |
| Octave | Born eighth | Boy | 3 |
| Octave | Born eighth | Boy | 3 |
| Octave | Eighth Child | Boy | 3 |
| Octavian | Born Eighth | Boy | 4 |
| Octavien | Eighth Child | Boy | 8 |
| Octavio | Eighth Child | Boy | 4 |
| Octavius | Eighth Born | Boy | 2 |
| Octavus | Eighth Child | Boy | 2 |
| Odalric | TBD | Boy | 8 |
| Oded | Encourages Strong | Boy | 1 |
| Odessa | Filled with Wrath | Boy | 9 |
| Odil | Rich | Boy | 4 |
| Odil | rich | Boy | 4 |
| Odilo | Rich | Boy | 1 |
| Odin | Inspiration, Wealthy Defender | Boy | 6 |
| Odo | Rich | Boy | 7 |
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| Odohr | Perfume Strong Smell | Boy | 6 |
| Odon | Wealthy Defender Protector | Boy | 3 |
| Odran | Pale Pale Green | Boy | 7 |
| Odwin | Noble Friend | Boy | 2 |
| Ofer | Young Deer, Deer, Gold | Boy | 8 |
| Ofir | Ferocious | Boy | 3 |
| Oger | TBD | Boy | 9 |
| Ohad | Praising Confessing United | Boy | 1 |
| Ohel | Tent Tabernacle Brightness | Boy | 4 |
| Okba | TBD | Boy | 2 |
| Olaf | Ancestors Heirloom Descendants | Boy | 7 |
| Olan | Royal Forefather | Boy | 6 |
| Olav | Ancestors Relic Relic Ancestral | Boy | 5 |
| Ole | Ancestors Descendant Ancestor | Boy | 5 |
| Oleg | Holy, Sacred, Blessed, Prosperous | Boy | 3 |
| Olegario | Dominates with the Lance | Boy | 1 |
| Olesya | TBD | Boy | 5 |
| Olfa | Familiarity Intimacy | Boy | 7 |
| Oliva | Olive Tree Olive | Boy | 5 |
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| Oliver | The olive tree The biblical olive tree symbolizes fruitfulness and beauty and dignity Extending an olive branch signifies an offer of peace | Boy | 9 |
| Oliver | Olive Tree, Elf Army | Boy | 9 |
| Oliverio | Peaceful, An Olive Tree | Boy | 6 |
| Olivier | From the olive tree | Boy | 9 |
| Olivier | From the olive tree | Boy | 9 |
| Olivier | From the Olive Tree Elf Army | Boy | 9 |
| Oliviero | An Olive Tree | Boy | 6 |
| Olla | Precious | Boy | 4 |
| Ollie | Diminutive of Oliver Olive tree | Boy | 8 |
| Olliver | Peaceful An Olive Tree | Boy | 3 |
| Olof | Ancestor Relic | Boy | 3 |
| Oluf | Descendant | Boy | 9 |
| Omar | An Era, The Highest | Boy | 2 |
| Omer | Eloquent or Bundle of Grain | Boy | 6 |
| Ommar | First Son | Boy | 6 |
| Omont | TBD | Boy | 5 |
| Omri | Sheaf of Corn Grain | Boy | 1 |
| Onesimus | Profitable Useful | Boy | 7 |
| Onfroi | PeacefuI Hun | Boy | 5 |
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| Onfroi | Peace Peaceful Hun | Boy | 5 |
| Onil | Wind | Boy | 5 |
| ONille | From the gold town | Boy | 4 |
| ONille | From the gold town | Boy | 4 |
| Onille | From Gold Town | Boy | 4 |
| Opie | TBD | Boy | 9 |
| Orain | Most Celebrated | Boy | 3 |
| Oram | From the Riverbank Enclosure | Boy | 2 |
| Orane | Rising | Boy | 8 |
| Orenga | TBD | Boy | 6 |
| Oreste | Man of the Mountain | Boy | 1 |
| Orhan | Army Commander | Boy | 2 |
| Ori | Light of Mine, Charitable King | Boy | 6 |
| Orian | Limit Boundary | Boy | 3 |
| Oriel | Gold | Boy | 5 |
| Orion | Border or Extremity, Son of Fire | Boy | 8 |
| Orlando | Renowned in the Land | Boy | 7 |
| Orleans | Golden | Boy | 3 |
| Ormond | Spear Defender, Spear | Boy | 7 |
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| Ormondo | Army Man Form of Herman | Boy | 4 |
| Orpheus | Beautiful Voice, Son of Apollo | Boy | 3 |
| Orry | From the Orient | Boy | 4 |
| Orso | Bear Cub | Boy | 4 |
| Orson | Bear like | Boy | 9 |
| Orson | Bear Like Ormonds Son Like a | Boy | 9 |
| Orson | Bear cub Famous Bearer American actordirector Orson Welles | Boy | 9 |
| Orv | From the Town of Gold | Boy | 1 |
| Orval | Golden Village, Spear Strength | Boy | 5 |
| Orval | Variant of Orville Gold town Famous Bearer aviator Orville Wright 1871-1948 who along with his brother Wilbur designed and built the first true airplane | Boy | 5 |
| Orvell | From the Town of Gold | Boy | 3 |
| Orvelle | Gold Town | Boy | 8 |
| Orvelle | Golden village | Boy | 8 |
| Orvelle | Gold town | Boy | 8 |
| Orvil | Golden village | Boy | 4 |
| Orvil | Golden Village, Spear Strength | Boy | 4 |
| Orvil | Gold town | Boy | 4 |
| Orville | Golden City Town Village | Boy | 3 |
| Orville | Golden village | Boy | 3 |