| Name | Meaning | Gender | Rashi |
|---|---|---|---|
| ONIO | see Anthony. | Male | NA |
| Onkar | Indicative of attributes of the pure being | Male | Vrisha |
| Onkareshwari | Goddess Parvati | Female | Vrisha |
| ONOFRE | Defender of peace | Male | NA |
| ONSLOW | (Old English) "zealous one's hill." | Male | NA |
| ONYX | Graceful, pure, noble | Female | Na |
| Ooghavati | Name of a river | Female | Vrisha |
| Oojasvinee | Full of energy, full of vigour, powerful | Female | Vrisha |
| OONA | Graceful, pure, noble | Female | Na |
| OONAH | Graceful, pure, noble | Female | Na |
| Oorjaa | Power, energy, vigour | Female | Vrisha |
| Oorjasvalaa | Full of energy, full of vigour, powerful | Female | Vrisha |