| Name | Sex | Language | Meaning(s) | Original Spelling | Notes |
|---|
| Ohood | Female | Arabic 10801 names | Meaning(s) of Ohood: Promises 2 names | عُهُوْد | Variant of the name Ouhood. |
| Olalla | Female | Spanish 108 names | Meaning(s) of Olalla: Eloquence 6 names | | Spanish form of Eulalia. |
| Olena | Female | Ukrainian 2 names | Meaning(s) of Olena: Shining Light 30 names | | Form of Helen. |
| Olga | Female | Russian 86 names | Meaning(s) of Olga: Prosperous 78 names Successful 158 names | | Feminine form of Oleg. |
| Oliaa | Female | Arabic 10801 names | Meaning(s) of Oliaa: Highest 16 names Sublime 55 names Supreme 11 names | عُليا | Variant of the name Ulya. |
| Olive | Female | English 773 names | Meaning(s) of Olive: Olive 18 names | | |
| Olivia | Female | English 773 names | Meaning(s) of Olivia: Olive 18 names | | |
| Olka | Female | Turkish 166 names | Meaning(s) of Olka: Homeland 4 names | | |
| Olwen | Female | Welsh 50 names | Meaning(s) of Olwen: One Whose Footprint is Blessed 1 names One Whose Footprint is White 1 names | | |
| Olya | Female | Russian 86 names | Meaning(s) of Olya: Prosperous 78 names Successful 158 names | | Pet form of Olga. |
| Olya | Female | Arabic 10801 names | Meaning(s) of Olya: Highest 16 names Sublime 55 names Supreme 11 names | عُليا | Variant of the name Ulya. |
| Olyaa | Female | Arabic 10801 names | Meaning(s) of Olyaa: Highest 16 names Sublime 55 names Supreme 11 names | عُليا | Variant of the name Ulya. |
| Omaima | Female | Arabic 10801 names | Meaning(s) of Omaima: Mother 6 names | أُمَيْمة | Variant of the name Umaima. |
| Omaimiya | Female | Arabic 10801 names | Meaning(s) of Omaimiya: Affectionate 70 names Kind 165 names Loving 33 names | أُمَيْمِيَّة | Literally "mother-like". |
| Omaira | Female | Arabic 10801 names | Meaning(s) of Omaira: Performer of Umrah 6 names Pilgrim 9 names | عُمَيْرَة | Variant of the name Umaira. |
| Omairah | Female | Arabic 10801 names | Meaning(s) of Omairah: Performer of Umrah 6 names Pilgrim 9 names | عُمَيْرَة | Variant of the name Umaira. |
| Omeedeh | Female | Persian 2045 names | Meaning(s) of Omeedeh: Hope 38 names | | Variant of the name Omideh. |
| Omideh | Female | Persian 2045 names | Meaning(s) of Omideh: Hope 38 names | | |
| Omma | Female | Arabic 10801 names | Meaning(s) of Omma: Community 6 names Nation 7 names | أُمَّة | Variant of the name Ummah, which is mentioned in the Quran. |
| Ommah | Female | Arabic 10801 names | Meaning(s) of Ommah: Community 6 names Nation 7 names | أُمَّة | Variant of the name Ummah, which is mentioned in the Quran. |
| Omniati | Female | Arabic 10801 names | Meaning(s) of Omniati: My Hope 5 names My Wish 5 names | أمنيتي | أمنياتي | |
| Omniya Umnia | Female | Arabic 10801 names | Meaning(s) of Omniya Umnia: Hope 38 names | أمنية | Variant of the name Umniya, which is mentioned in the Quran. |
| Onaifa | Female | Arabic 10801 names | Meaning(s) of Onaifa: Dignified 40 names | أُنَيْفَة | |
| Onaitarah | Female | Arabic 10801 names | Meaning(s) of Onaitarah: Brave 136 names | عُنَيترة | |
| Onaizee | Female | Arabic 10801 names | Meaning(s) of Onaizee: Agile 29 names Beautiful 416 names Gazelle 46 names | عُنَيْزِيّ | Variant of the name Unayzee. |
| Onaysa | Female | Arabic 10801 names | Meaning(s) of Onaysa: Consoler 33 names Good Friend 15 names | أُنَيْسَة | |
| Onayzi | Female | Arabic 10801 names | Meaning(s) of Onayzi: Agile 29 names Beautiful 416 names Gazelle 46 names | عُنَيْزِيّ | Variant of the name Unayzee. |
| Onshuda | Female | Arabic 10801 names | Meaning(s) of Onshuda: Chant 2 names Hymn 2 names | أُنشُودة | |
| Onsiyah | Female | Arabic 10801 names | Meaning(s) of Onsiyah: Bringer of Calm and Gladness 4 names | أُنْسِيَّة | |
| Oola | Female | Arabic 10801 names | Meaning(s) of Oola: First 9 names Foremost 4 names | أُوْلَى | Variant of the name Oula, which is mentioned in the Quran. |
| Opal | Female | English 773 names | Meaning(s) of Opal: Opal 2 names | | Opal is a type of gemstone. |
| Opaline | Female | English 773 names | Meaning(s) of Opaline: Opal 2 names | | Elaboration of Opal. |
| Oraib | Unisex | Arabic 10801 names | Meaning(s) of Oraib: Intelligent 181 names Keen 24 names Perceptive 68 names | أُرَيْب | |
| Oraiba | Female | Arabic 10801 names | Meaning(s) of Oraiba: Intelligent 181 names Keen 24 names Perceptive 68 names | أُرَيْبَة | |
| Oraibia | Female | Arabic 10801 names | Meaning(s) of Oraibia: Intelligent 181 names Keen 24 names Perceptive 68 names | أُرَيْبِيَّة | |
| Orla | Female | Irish 84 names | Meaning(s) of Orla: Golden Lady 1 names Golden Princess 1 names | | |
| Ornella | Female | Italian 145 names | Meaning(s) of Ornella: Flowering Ash Tree 2 names | | |
| Ornetta | Female | Italian 145 names | Meaning(s) of Ornetta: Flowering Ash Tree 2 names | | |
| Orwa | Unisex | Arabic 10801 names | Meaning(s) of Orwa: Ever-green Tree 4 names Handhold 4 names Lion 105 names | عُروة | Variant of the name Urwah, which is mentioned in the Quran. |
| Orwah | Unisex | Arabic 10801 names | Meaning(s) of Orwah: Ever-green Tree 4 names Handhold 4 names Lion 105 names | عُروة | Variant of the name Urwah, which is mentioned in the Quran. |
| Orzah | Female | Arabic 10801 names | Meaning(s) of Orzah: Competent 7 names Proactive 1 names | عُرْضَة | |
| Otilie | Female | Czech 29 names | Meaning(s) of Otilie: Prosperous 78 names | | Form of Ottilie. |
| Ottilie | Female | French 120 names German 170 names | Meaning(s) of Ottilie: Prosperous 78 names | | |
| Ottoline | Female | English 773 names French 120 names | Meaning(s) of Ottoline: Prosperous 78 names | | Diminutive form of Ottilie. |
| Otylia | Female | Polish 52 names | Meaning(s) of Otylia: Prosperous 78 names | | Form of Ottilie. |
| Ouhood | Female | Arabic 10801 names | Meaning(s) of Ouhood: Promises 2 names | عُهُوْد | |
| Oula | Female | Arabic 10801 names | Meaning(s) of Oula: First 9 names Foremost 4 names | أُوْلَى | The name Oula is mentioned in the Quran. |
| Oulaa | Female | Arabic 10801 names | Meaning(s) of Oulaa: First 9 names Foremost 4 names | أُوْلَى | Variant of the name Oula, which is mentioned in the Quran. |
| Oumaima | Female | Arabic 10801 names | Meaning(s) of Oumaima: Mother 6 names | أُمَيْمة | Variant of the name Umaima. |
| Oumama | Female | Arabic 10801 names | Meaning(s) of Oumama: Three Hundred Camels 4 names | أُمامة | Variant of the name Umamah. |
