Search boys Baby Names starting with letter O
| # | Name | Origin | Meaning | Gender | Save |
| 151 | Olvir | Norse | Affectionate. | M |  |
| 152 | Olwydd | Welsh | Tracker. | M | |
| 153 | Olympas | Biblical | Heavenly. | M | |
| 154 | Olyn | Norse | Relic. | M | |
| 155 | Om | Norse | Father of Idunn. | M | |
| 156 | Omar | Muslim | Variant of Omar: Life. Long living.. | M | |
| 157 | Omar | Arabic | Long-lived. | M | |
| 158 | Omar | Biblical | He that speaks; bitter | M | |
| 159 | Omar | Hebrew | Eloquent. Speaker. The grandson of Esau in the Old Testament. Famous Bearers: 12th century Persian poet and astronomer and mathematician Omar Khayyam; Caliph Omar II, who made Islam an imperial power; actor Omar Sharif. | M | |
| 160 | Omar | Muslim | Life. Long living.. | M | |
| 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 | |
| 181 | Onfroi | French | PeacefuI Hun. | M | |
| 182 | ONille | French | From the gold town. | M | |
| 183 | Onnan | Teutonic | Mariner. | M | |
| 184 | Ono | Biblical | Grief or strength or iniquity of him. | M | |
| 185 | Onslow | English | From the zealous one's hill. | M | |
| 186 | Onslowe | English | From the zealous one's hill. | M | |
| 187 | Onund | Norse | Son of Viking. | M | |
| 188 | Onuris | Egyptian | Brings back the distant one. | M | |
| 189 | Ony | Russian | Eagle. | M | |
| 190 | Ony | Slavic | Eagle. | M | |
| 191 | Ophel | Biblical | A tower, darkness, small white cloud. | M | |
| 192 | Ophion | Greek | A serpent. | M | |
| 193 | Ophir | Biblical | Fruitful region. | M | |
| 194 | Ophni | Biblical | Wearisomeness, folding together. | M | |
| 195 | Ophrah | Biblical | Dust, lead, a fawn. | M | |
| 196 | Orahamm | English | From tbe riverbank enclosure. | M | |
| 197 | Oral | Russian | Eagle. | M | |
| 198 | Oral | Slavic | Eagle. | M | |
| 199 | Oram | English | From tbe riverbank enclosure. | M | |
| 200 | Oran | Celtic | White. | M | |