| Name | Gender | Meaning | Favorites |
| Obadiah | Boy | Serves God | |
| Obalesh | Boy | Lord Shiva | |
| Obediah | Boy | Serves God | |
| Odakota | Boy | Friend | |
| Oded | Boy | Strong | |
| Odil | Boy | Rich | |
| Odysseus | Boy | Full of wrath | |
| Ojas | Boy | Body Strength, Light | |
| Ojayit | Boy | Courageous | |
| Oleg | Boy | Sacred | |
| Olin | Boy | Holly | |
| Oliver | Boy | Olive Tree | |
| Ollie | Boy | From the name oliver | |
| Om Prakash | Boy | Light of the essence of life, The light of creation | |
| Omahara | Boy | Welling up of Rapture | |
| Omanand | Boy | Joy of om | |
| Omar | Boy | Speaker, Ultimate devotee | |
| Omari | Boy | Version of omar | |
| Omarjeet | Boy | Lord of OM | |
| Omav | Boy | Avtar of Om, Incarnation of God | |
