| Name | Gender | Meaning | Favorites |
| Omisha | Girl | Goddess of birth & death | |
| Omkareshwari | Girl | Gauri, Goddess Parvati | |
| Omkarnath | Boy | Lord of Omkaar | |
| Ompati | Boy | Master of OM | |
| Omswaroop | Boy | Manifestation of divinity | |
| Omvati | Girl | Sacred | |
| Oojam | Boy | Enthusiasm | |
| Oorja | Girl | The energy | |
| Oorjit | Boy | Powerful | |
| Oorjitha | Girl | Powerful | |
| Oormila | Girl | The youger sister of Sita | |
| Oparna | Girl | Parvathi | |
| Oppilan | Boy | Peerless gem | |
| Oppilmani | Boy | Purest of gems | |
| Orpita | Girl | Offering | |
| Oshma | Girl | Summer season | |
| Osho | Boy | Dear | |
| Ottakoothan | Boy | Poet | |
| Oviya | Girl | Artist, Beautiful drawing | |
| Oviyan | Boy | Artist | |
