Starting with letter O
| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 161 | Omari | African | God the highest (Swahili). | M | |
| 162 | Omari | Egyptian | High born. | M | |
| 163 | Omarr | African | God the highest (Swahili). | M | |
| 164 | Omawnakw | NativeAmerican | Cloud feather (Hopi). | M | |
| 165 | Omeet | Hebrew | My light. | M | |
| 166 | Omega | Biblical | The last letter of the Greek alphabet, long O. | M | |
| 167 | Omer | Arabic | First son. | M | |
| 168 | Omet | Hebrew | My light. | M | |
| 169 | Ommar | Arabic | First son. | M | |
| 170 | Omolf | Norse | Son of Armod. | M | |
| 171 | Omparkash | Indian | Light of God. | M | |
| 172 | Omran | Muslim | Solid structure.. | M | |
| 173 | Omri | Biblical | Sheaf of corn. | M | |
| 174 | On | Biblical | Pain, force, iniquity | M | |
| 175 | Onam | Biblical | Pain, force, iniquity | M | |
| 176 | Onan | Biblical | Pain, force, iniquity | M | |
| 177 | Ondrus | Czechoslovakian | Manly. | M | |
| 178 | Ondyaw | Welsh | Legendary son of a French Duke. | M | |
| 179 | Onesimus | Biblical | Profitable, useful. | M | |
| 180 | Onesiphorus | Biblical | Who brings profit. | M | |