See also: 200+ Lord Murugan Names In Tamil For Baby Girl (List)
| S.No | Name | Meaning | Numerology |
| 1 | Odathi (ஓததீ) | Refreshing | 3 |
| 2 | Oditi (ஓதிதீ) | Dawn | 3 |
| 3 | Oeshi (ஓஏஷீ) | Divine; Rose | 11 |
| 4 | Oindrila (ஓஂத்ரிலா) | Another name for the wife of Indra | 1 |
| 5 | Oishani (ஓஇஷநி) | Another name of young Goddess Parvati | 3 |
| 6 | Oishi (ஓஈஷீ) | Divine; Rose | 6 |
| 7 | Oja (ஓஜா) | Vitality | 8 |
| 8 | Ojal (ஓஜல) | Vision | 11 |
| 9 | Ojashwini (ஓஜஷவிநீ) | Lustrous | 9 |
| 10 | Ojasvi (ஓஜஸ்வீ) | Bright | 22 |
| 11 | Ojaswani (ஓஜஸ்வநீ) | All day singing | 11 |
| 12 | Ojaswi (ஓஜஸ்வீ) | Bright | 5 |
| 13 | Ojaswini (ஓஜஸ்விநீ) | Lustrous | 1 |
| 14 | Ojaswita (ஓஜஸ்வீதா) | Bright brightness; A person symbolic of brightness | 8 |
| 15 | Olevia (ஓலேவியா) | Like olive | 1 |
| 16 | Om Sri () | Combination of God | 11 |
| 17 | Oma (ஓமா) | Life giver | 11 |
| 18 | Omaira (ஓமைரா) | Star | 3 |
| 19 | Omaja (ஓமஜா) | A result of spiritual unity | 4 |
| 20 | Omala (ஓமலா) | Earth | 6 |
| 21 | Omana (ஓமநா) | A woman | 8 |
| 22 | Omi (ஓமீ) | THE SOUND OF UNIVERSE | 1 |
| 23 | Omisha (ஓமிஷா) | Smile; Goddess of birth & death | 11 |
| 24 | Omkareshwari (ஓமகாரேஷ்வரீ) | Goddess Parvati, Gauri | 6 |
| 25 | Omkari (ஓமகாரீ) | Religious word Om | 4 |
| 26 | Omvati (ஓமவதீ) | Sacred; Having the power of Om | 8 |
| 27 | Omysha (ஓமீஷா) | Smile; Goddess of birth & death | 9 |
| 28 | Onalika (ஓநலிகா) | Image | 9 |
| 29 | Oni (ஓநீ) | Shelter | 2 |
| 30 | Oorja (ஊர்ஜா) | Energy; Affectionate; Daughter; Nutrition; Breath | 5 |
| 31 | Orpita (ஓர்பிதா) | Offering | 7 |
| 32 | Oshma (ஓஷமாஂ) | Summer season | 2 |
| 33 | Ovia (ஓவீஏ) | Painting; Artist; Beautiful drawing | 2 |
| 34 | Oyshee (ஓய்ஷீ) | Divine; Rose | 5 |