Unique Girl Names that Start With O

Oaklynn

American invented name

"oak lake"

Many names relating to oak as in the tree are becoming more popular for baby girls, including Oaklynn, more popular than twin Oaklyn three to one. About 1800 baby girls were named Oaklynn versus 600…

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…

Oaklyn

American invented name

"oak lake"

Oaklyn is one of the oak-related names moving up the popularity charts, along with more popular sister Oakley and near-identical twin Oaklynn. The Oaklynn spelling used for three times as many baby…

Oakleigh

Variation of Oakley, English

"oak clearing"

Oakleigh broke into the Top 1000 in 2019, two years after Oaklee and six years after Oakley. Last year, about 600 baby girls were named Oakleigh in the US, almost exactly the same number as Oaklyn --…

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…

Odessa

Russian form of Odesa, Ukrainian place-name

"voyage"

Odessa, (transcribed as Odesa in Ukrainian) is a Ukrainian port city and was given its name by Catherine the Great, who was inspired by Homer's Odyssey . It would make an original and intriguing…

Oriana

Latin

"dawn; gold"

Oriana is a dashing medieval name, with a meaning similar to Aurora. At this point, though, Oriana is much more unusual than Aurora and makes a unique choice if you're searching for names that mean…

Olympia

Greek

"from Mount Olympus"

With its relation to Mount Olympus, home of the Greek gods, and to the Olympic games, this name has an athletic, goddess-like aura, making it the perfect Olivia substitute. A well-known art reference…

Ollie

Short form of Olive or Olivia, Latin

"olive tree"

Less used than Liv or Livvy, Ollie is a boyish nickname for girls, sometimes used for Olivia and Olive. Currently out of the US charts, you might be surprised to learn that Ollie actually ranked more…

Orla

Irish

"golden princess"

Orla is an Irish name closely associated with the high king Brian Boru, as it was the name of his sister, daughter and niece. It was very popular in the Middle Ages – the fourth most popular name in…

Oona

Irish, variation of Una

"lamb"

Oona is a name made famous by Eugene O'Neill's daughter, who became Charlie Chaplin's wife. One of the original Oona's granddaughters was named after her, and is now an actress famous in her own…

Odelia

Hebrew, German

"I will praise the Lord or wealth"

Pretty Hebrew name that would create a strong but feminine impression, as well as a variant of the Germanic name Odilia or Ottilie.

Olga

Slavic variation of Helga, Norse

"holy"

This Slavic form of the Norse name Helga is a classic in many Slavic countries, including Russia and Poland, where it currently ranks within the Top 100 girl names. It has historically ranked among…

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…