| Name | Meaning | Origins | Gender | Popularity (last 10y) | |
|---|---|---|---|---|---|
| Octawia | Eighth (born eighth) | Latin | Girl | — | |
| Oetavian | Derived from Latin Octavianus - 'eighth' or 'born eighth.' | Latin | Boy | — | |
| Oleanthe | Olive flower / flower of the olive | Greek, Latin | Girl | — | |
| Oletta | Little olive / olive tree | Latin | Girl | — | |
| Olinah | Generally interpreted as 'joyful' or 'bright' (depending on root) | Latin, Norse, Slavic | Girl | — | |
| Olivah | Olive; olive tree - symbol of peace | Latin | Girl | — | |
| Olivarius | Relating to the olive tree; connotes peace, fruitfulness, and victory. | Latin | Boy | — | |
| Oliverios | Olive tree; olive branch (symbolically peace). | Latin, Norse | Boy | — | |
| Olivinda | Olive; related to the olive tree, symbolizing peace and fertility | Latin | Girl | — | |
| Olla | Varies by origin: from Olivia → 'olive/olive tree'; from Olga/Olia → 'holy, blessed'; as a Spanish word → 'pot, earthenware vessel' | Latin, Scandinavian | Girl | — | |
| Ollee | Olive; 'olive tree' (associated with peace), derived from Oliver/Olivia | Latin | Unisex | — | |
| Olliva | Olive tree; symbol of peace | Latin | Girl | — | |
| Olviya | Olive (olive tree); symbolically associated with peace or prosperity | Latin | Girl | — | |
| Olyva | Olive tree; symbol of peace and fruitfulness | Italian, Latin, Spanish | Girl | — | |
| Olyvya | Olive, olive tree (symbolically associated with peace) | Latin | Girl | — | |
| Ondina | Little wave; water nymph (sea nymph) | Latin | Girl | — | |
| Ondinah | Wave; water spirit / sea nymph | Italian, Latin, Spanish | Girl | — | |
| Ondyne | Water nymph; wave | French, Latin | Girl | — | |
| Onicio | Likely “useful” or “profitable” (from Greek Onesimos) or “of the Onicius family” (Roman origin) | Latin, Spanish | Boy | — | |
| onnora | Honor; honourable | Latin | Girl | — | |
| Onoria | Honor; honorable | Latin | Girl | — | |
| Onoriah | Honor; honorable; woman of honor | Latin | Girl | — | |
| Onoryna | Honor; honorable | Latin | Girl | — | |
| Onorynah | Honor; dignity; esteem | Latin | Girl | — | |
| Onoryne | Honor, dignity; 'honorable' | Latin | Girl | — | |
| Oppida | Town; fortified settlement | Latin | Girl | — | |
| Ops | Goddess of fertility, abundance, and wealth; name related to 'help' or 'power' | Latin | Girl | — | |
| Oracula | Oracle; prophetic utterance (diminutive sense: 'little oracle') | Latin | Girl | — | |
| Oratio | Speech; prayer; oration | Latin | Boy | — | |
| Orazia | Feminine form of Horatius/Horace; originally 'of the Horatii' and often interpreted loosely as 'of the hour' or 'timekeeper'. | Latin | Girl | — | |
| Orbona | Roman goddess associated with orphans and the bereaved; name related to Latin 'orbus' (bereft). | Latin, Roman | Girl | — | |
| Orcus | Name of a Roman god/demon of the underworld, associated with death and the punishment of oath-breakers | Latin | Boy | — | |
| Oreel | Possibly 'light of God' (Hebrew) or 'golden' (Latin); modern invented form | French, Hebrew, Latin | Unisex | — | |
| Orela | Golden | Latin | Girl | — | |
| Orele | Possibly 'light of God' (from Hebrew Orel) or associated with 'golden' (from Latin/French Aurelius/Aurelia) | French, Hebrew, Latin | Girl | — | |
| Oreliah | Likely 'golden' (from Latin) or 'light/God's light' (Hebrew-influenced) | Latin | Girl | — | |
| Orell | Possibly 'golden', 'light', or 'eagle' depending on the root; generally connotes brightness, nobility, or strength. | Catalan, Hebrew, Latin, Slavic, Spanish | Unisex | — | |
| Orelle | Either "golden" (if linked to Aurelia) or "God's light" / "light of God" (if from Hebrew Orel); also used as a French feminine/place name. | French, Hebrew, Italian, Latin | Girl | — | |
| Oreta | Likely 'golden' or 'little gold'; sometimes associated with 'dawn' or a diminutive form | Latin, Spanish | Girl | — | |
| Orial | Most likely 'golden' (from Latin aureolus via Catalan Oriol); alternatively interpreted as 'my light' or associated with the oriole bird. | Catalan, English, Latin | Boy | — | |
| orianna | Golden; dawn/rising | Latin | Girl | — | |
| Oriolus | Golden oriole (a small golden songbird) | Latin | Boy | — | |
| Ornat | Possibly 'light' (from Hebrew 'Or') or 'adorned/ornate' (from Latin 'ornatus'); exact origin uncertain. | Hebrew, Latin | Girl | — | |
| Orsin | Bear (diminutive: little bear) | Latin | Boy | — | |
| Orsine | Little bear; bear-like | Italian, Latin | Girl | — | |
| Orsyno | Little bear; bear-like | Latin | Unisex | — | |
| Ortense | Related to the Latin hortus 'garden' - 'of the garden' or 'belonging to Hortensius'. | Italian, Latin | Girl | — | |
| Ortensia | From the garden; associated with the hydrangea (a flowering shrub) | Latin | Girl | — | |
| Ortensiana | Derived from the Roman family name Hortensius (from Latin hortus 'garden') - 'of the garden' / 'belonging to the Hortensius family.' | Latin | Girl | — | |
| Otavia | Eighth; born eighth | Latin | Girl | — |
Aggregated births across United States, United Kingdom, France, Germany for every Latin-origin name in our dataset.
