| # | Name | Origin | Meaning | Gender | Save |
|---|---|---|---|---|---|
| 3101 | Osborn | English | Divine warrior. | M | |
| 3102 | Osborne | English | Variant of Osborn: Divine warrior. | M | |
| 3103 | Osbourne | English | Divine warrior. | M | |
| 3104 | Osburn | English | Divine warrior. | M | |
| 3105 | Osburt | English | Divinely brilliant. | M | |
| 3106 | Oscar | English | Divine spear; God's spear. Famous Bearer: poet Oscar Wilde (1854-1900), who was put on trial and imprisoned for homosexuality. | M | |
| 3107 | Osman | English | Godly protection. | M | |
| 3108 | Osmar | English | Divinely glorious. | M | |
| 3109 | Osmarr | English | Divinely glorious. | M | |
| 3110 | Osmin | English | Godly protection. | M | |
| 3111 | Osmond | English | Divine protector. | M | |
| 3112 | Osmont | English | Divine protector. | M | |
| 3113 | Osmund | English | Variant of Osmond: Divine protector. | M | |
| 3114 | Osraed | English | Divine counselor. | M | |
| 3115 | Osred | English | Divine counselor. | M | |
| 3116 | Osric | English | Divine ruler. | M | |
| 3117 | Osrick | English | Divine ruler. | M | |
| 3118 | Osrid | English | Divine counselor. | M | |
| 3119 | Osrik | English | Divine ruler. | M | |
| 3120 | Osryd | English | Divine counselor. | M | |