Girls Names Beginning With O

Olivia

Latin

"olive tree"

Olivia, a lovely Shakespearean name with an admirable balance of strength and femininity, is one of the top girls' names around the world. 2025 marked its 7th consecutive year in the #1 spot in the…

Oakley

English

"oak wood or clearing"

Oakley, with its nature name roots and its Annie Oakley charm, is a hot name for both genders but more than twice as popular for girls. This name made it into the Top 1000 for the first time in 2013,…

Olive

English, from Latin, nature name

"olive tree"

Though greatly overshadowed by the trendy Olivia, Olive has a quiet, subtle appeal of its own -- and is now enjoying a remarkable comeback. Olive is one of only four girl names starting with O on the…

Ophelia

Greek

"help"

Floral, elegant, and bold, Ophelia re-entered the US Top 1000 in 2015 after more than 50 years off the charts. It has risen more than 700 spots since then and shows no signs of slowing down. Now in…

Octavia

Latin

"eighth"

Octavia began as the Latin, then Victorian name for an eighth child. While there aren't many eighth children anymore, this ancient Roman name has real possibilities as a substitute for the overused…

Opal

Sanskrit

"gem"

Opal is on the verge of a repolishing, following other jewel names like Ruby and Pearl. A Top 100 name during the first two decades of the twentieth century, the opalescent Opal has a good chance of…

Oaklee

Variation of Oakley, English

"oak clearing"

Oakley is one of the truest unisex names for babies, achieving a 56-44 gender distribution, favoring girls. Oaklee is 80% female and may serve as a clearer identification of sex, if that’s what…

Ocean

English, nature name

Ocean is a nature name that comes right out and states its meaning and association. Full of power and depth, Ocean is one of the fastest-rising baby names for both girls and boys, making the US Top…

Odette

French, from German

"wealthy"

Odette is the good swan in Tchaikovsky's ballet Swan Lake , a role for which Natalie Portman won an Oscar ---and it would make a particularly sophisticated yet upbeat choice. In fact, it charted in…

Oak

Nature name

Ten times as many boys are named Oak as girls: about 50 boys last year to five girls. Of course, nature names don't have any traditional gender identification the way names like John and Mary do, so…

Oana

Romanian short form of Ioana

"God is gracious"

An lesser-known member of the John-Joan family, though popular in its native habitat, has never emigrated, possibly due to its non-intuitive pronunciation.

Oasis

Egyptian

"fertile spot in a desert"

A distinctive word name with musical ties, Oasis was given to 20 girls in 2024, compared with 14 in 2023.

Obedience

Virtue name

It may have been used by the Puritans, but any modern child would chafe under this name.

Oceana

Greek

"ocean"

If you're a lover of the beach and sea, and want a name that relates to the largest body of water, there are several variations you could consider. Oceana is the female form of Oceanus, the god of…

Oceane

French

"ocean"

Oceane (oh-see-EN) has been one of the chicest names in France for several years, ranking in the French Top 50. This is a sophisticated name that could easily cross the ocean, and is much more…

Octava

Octava is a feminine name with Latin origins, derived from the word 'octavus' meaning 'eighth.' Historically, this name was often given to the eighth daughter in a family or to a girl born in the…

Octavie

Octavie is a feminine name with Latin origins, derived from the Roman name Octavius, meaning 'eighth' or 'born eighth.' It's the feminine form of Octave, particularly used in French-speaking regions.…

October

English word name

"month name"

What is so rare as a month named June? October – and November and December – are a lot rarer. Brisk and substantial, they're so much more memorable and modern than April or May. October got its name…

Océane

French

"ocean"

Popular in France and Quebec, but familiar in Switzerland and Belgium too, Océane is a French nature name that combines elegance with a beachy, summery feel. It recently ranked in the French Top 300,…

Odalis

French, Spanish

"chambermaid, concubine; wealth, fortune"

Also appearing as Odalys, this name has two possible origins, one more favorable perhaps than the other. Used predominantly in Spanish speaking countries, and in the US, Odalis may come from the…