Starting with letter O
| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 121 | Osbart | English | Divinely brilliant. | M | |
| 122 | Osborn | English | Divine warrior. | M | |
| 123 | Osborne | English | Variant of Osborn: Divine warrior. | M | |
| 124 | Osborne | Norse | Variant of Osborn: Divine bear. | M | |
| 125 | Oscar | Celtic | Jumping fighter. | M | |
| 126 | Oscar | English | Divine spear; God's spear. Famous Bearer: poet Oscar Wilde (1854-1900), who was put on trial and imprisoned for homosexuality. | M | |
| 127 | Osgood | Norse | A divine Goth. | M | |
| 128 | Osgood | Teutonic | Divine creator. | M | |
| 129 | Osip | Hebrew | God wiIl multiply. | M | |
| 130 | Osip | Ukrainian | Ukrainian form of Joseph 'God shall add'. | M | |
| 131 | Oskar | Scandinavian | God's spear. | M | |
| 132 | Oskar | Swedish | Leaping warrior. | M | |
| 133 | Osman | English | Godly protection. | M | |
| 134 | Osmar | English | Divinely glorious. | M | |
| 135 | Osmond | English | Divine protector. | M | |
| 136 | Osmund | English | Variant of Osmond: Divine protector. | M | |
| 137 | Osric | Anglo-Saxon | Divine ruler. | M | |
| 138 | Ossama | Muslim | One of the names of the lion.. | M | |
| 139 | Ossie | English | Diminutive of Oscar: Divine spear; God's spear. Famous Bearer: poet Oscar Wilde (1854-1900), who was put on trial and imprisoned for homosexuality. | M | |
| 140 | Osvald | Teutonic | Divine power. | M | |