Ariel is a male Biblical name, seen there as the messenger of Ezra, and also used as a symbolic name for the city of Jerusalem, while Shakespeare used it for a (male) sprite in The Tempest.
 For girls, Ariel enjoyed a considerable burst of popularity with the 1989 release of Disney's The Little Mermaid: in 1991 it peaked at #66. 
 Although its wave has crested, Ariel is still a name any little girl would love. It is also associated with the poetry of Sylvia Plath and with the Chilean-American writer Ariel Dorfman. The popular historian Ariel Durant was born Ida Ariel Ethel.
 In Israel, Ariel is used as much or more for boys, but in the US, more than three times as many baby girls as boys are named Ariel. Read more about Ariel and other <a href="https://nameberry.com/blog/disney-princess-names">Disney Princess Names</a> in our featured blog.

Ariel

Atlas is one of those names that was previously thought too powerful for a baby boy, who would have to be strong enough to carry the world on his shoulders. Now Atlas has joined the pantheon of Greek and Roman god and goddess names in the realm of possibility, along with Mars, Zeus and Apollo.

 Atlas was one of the fast-rising names on the list in recent years in the USA, jumping from oblivion in 2012 into the Top 500 in 2015, and climbing several hundred places higher since then. Anne Heche was one of the first to make this audacious choice, but several celebrity parents have followed suit.

 As well as the mythological connection, Atlas is a cool geographical word name – perfect for the child of parents who love traveling or who hail from different parts of the globe.

Atlas

Azure is a colorful gender-neutral choice, currently used equally for baby girls and boys in the US. It refers to a specific shade of blue seen in a cloudless sky. Elon Musk recently revealed Azure to be the name of his daughter with Shivon Zilis, twin sister to Strider. While X and Y didn't stand a chance at greater popularity, parents may be inspired to use the name Azure following this celebrity endorsement.
 
In the Middle Ages, azure was another name for lapis lazuli, the gemstone used to make the brilliant pigment seen in much medieval art.

Azure

Calla is a lily name that is much more distinctive and delicate than Lily. Rarely heard today, it did appear in the popularity lists in the last decades of the nineteenth century.
 Calla is the eponymous heroine of the Rebecca Wells novel The Crowning Glory of Calla Lily Ponder, and there's an English rock band called Her Name is Calla.
 Actress Mare Winningham named her daughter Calla way back in 1987.
Sound-alike Cala is an Arabic name meaning fortress.

Calla

Cassia is related to the cassia tree, which has yellow flowers and produces a spice that can be a substitute for cinnamon. Keziah, the name of Job’s daughter in the Old Testament, derives from the name of the plant as well. Cassia also has ties to the Ancient Roman name Cassius, an Ancient Roman family name meaning "hollow." 
 
Cassia is one of the rare names that's truly unusual yet has a stylish feel. Cassia has the added attraction of the sweet smell of cinnamon, thanks to its botanical associations. We predict Cassia will become much more popular along with her brother names Cassian and Cassius. 
 
Keziah, the Biblical equivalent, is also due for rediscovery, while Kassia is the Greek spelling that ties the name to Saint Kassiani, a feminist heroine.

Cassia

Cassiopeia, the name of a mythological mother who became a stellar constellation, is challenging but intriguing, and has all those softening Cass nicknames available. And with all names Cass-related trending, Cassiopeia may be an unusual route to a stylish name.

With the rise of other otherworldly and mythical choices, from Apollo to Jupiter to Juno, Cassiopeia may just feel more possible for mortals now than ever before in its long history.

Some sources say the meaning relates to the cassia berry or tree, and may be "cassia juice," making this a botanical as well as a mythological name.

Cassiopeia

Like Cerulean, one of the new and unusual color names -- it's a soft grayish green -- suitable for a boy. 

Celadon

Celeste is a softly pretty and somewhat quaint name with heavenly overtones, which kids might associate with Queen Celeste of Babar's elephant kingdom. She's a light and lovely choice that's finally getting noticed.
 Celeste has been in the Top 1000 every year since 1880. Best known modern Celeste is Oscar-winning actress Celeste Holm.
 If you want a more unusual variation, consider Celestine, Celestia -- or even Celestial.

Celeste

Even among the range of blue names on the current baby naming palette -- Blue itself, Azure, Cerulean, Teal, Aqua, Cyan, Indigo -- Cobalt remains the most unusual, not to mention the most masculine.

Cobalt

Cosima, the kind of elegant and unusual name the British upper classes love to use for their daughters, is given to a handful of baby girls in the US after being chosen by two high-profile celebs in the same month; cool couple Sofia Coppola and Thomas Mars as well as supermodel Claudia Schiffer. It was used earlier by celebrity chef Nigella Lawson, while the male form, Cosimo, was given to the son of Marissa Ribisi and Beck.
 
The most famous Cosima in history had strong musical ties — Cosima Wagner was the daughter of composer Franz Liszt and the wife of composer Richard Wagner. Cosima is well used in Germany, Italy and Greece, but in the US, it was given to only ten baby girls in 2021, the same number who got the name in 2010.
 
A note on pronunciation: in Germany, Italy, and Spain, they say KO-zee-ma, like cozy ma. In the UK, they rhyme the first syllable with boss. In the US, you can do whatever you want.

Cosima

We all heard it on Seinfeld as the long-concealed first name of Kramer, then considered a punchline. Now some pioneering parents are embracing this expansive Greek name, which makes a creative and cool choice for a baby. Influential celebrity couple Scarlett Johansson and Colin Jost chose it for their son, born in 2021, which will likely drive Cosmo up in popularity. In the UK, it currently ranks within the Top 1000 boy names and is trending upwards.

 In literature, Baron Cosmo Bradwardine is a character in Sir Walter Scott's novel Waverly and Cosmo Topper is the befuddled banker in Thorne Smith's humorous novel Topper. In modern times Cosmo has become the short form for Cosmopolitan – both the magazine and the cocktail. And for those wishing to honor a medic in the family, Cosmo is also the name of the Arabian-born patron saint of doctors.

Cosmo

Emerald is the intriguing color and jewel name of the deep green stone treasured as far back as ancient Egypt — it's supposed to open one's heart to wisdom and to love and be good for strengthening relationships — which could make for an interesting, unusual name, particularly with the popularity of so many Em-starting names. 
 Emerald is the birthstone of May, making it extra appropriate for a girl born in that month. Some pleasant associations: the Emerald Isle and the Emerald City.
 Esmeralda is the Spanish version.

Emerald

Esmeralda came into use as an applied use of the Spanish word for emerald, esmeralda. In the 1831 Victor Hugo novel Notre-Dame de Paris, also known as The Hunchback of Notre-Dame, the heroine was born Agnes, but called La Esmeralda in reference to the jewel she wears around her neck. The name Esmeralda got increased visibility via the Disney version of the story.
 
This Portuguese and Spanish version of the jewel-like Emerald has long been popular with Hispanic parents. Eva Mendes and Ryan Gosling named their first daughter Esmeralda, inspired by the Victor Hugo novel. Read more about Esmeralda and other <a href="https://nameberry.com/blog/disney-princess-names">Disney Princess Names</a> in our featured blog.

Esmeralda

Maybe it's because she shares that winning -elle sound with Isabel and Bella, but Estelle is no longer seen as a muumuu-wearing canasta player of a certain age (think George Costanza's mother on Seinfeld or Joey Tribbiani's talent agent in Friends). This could be in part thanks to the young Royal Couple of Sweden, who chose it for their firstborn daughter, or the single-named British R&B singer. It reentered the US Top 1000 in 2012 after a nearly fifty-year absence.
 Latin version Estella, introduced in Great Expectations, also has energy and charm, while Estrella is another stylish member of this star-related club. Ali Landry has a daughter named Estela. Este and Estee are also in the wind.

Estelle

Heathcliff is the name of the original passionate macho hero of Emily Bronte's Wuthering Heights, and also of the cartoon cat. It was chosen by fashionista Lucy Sykes for her son, and inspired the late Heath Ledger's name. But otherwise it's barely used, and perhaps a bit much of a namesake. For a modern boy we'd recommend Heath....or Cliff.

Heathcliff

Juniper is a fresh-feeling nature name -- it's a small evergreen shrub -- with lots of energy. A new favorite of fashionable parents, Juniper joins such other tree and shrub names as Hazel, Acacia, and Willow. 
 
Juniper has an interesting variety of associations -- it's mentioned in the Old Testament, was used in Renaissance paintings to represent chastity, has berries used to flavor gin, and Juniper is the Saint of Comedy. A male St. Juniper was a follower of St. Francis of Assisi. 
 Goodnight Moon and The Runaway Bunny author Margaret Wise Brown sometimes used the pen name of Juniper Sage. And in the Junie P. Jones kids' books, Junie's full name is Juniper Beatrice. There also have been Junipers is cartoon series (The Life and Times of Juniper Lee) and comic strips as well.
 
The name got something of a hippieish vibe via the 1969 hit Donovan song, 'Jennifer Juniper.'
 
Juniper entered the U.S. Top 1000 for the first time in 2011 and has risen to the Top 150.

Juniper

Out-of-the-ordinary gemstone name derived from lapis lazuli, which is said to enhance awareness and intellect, impart ancient wisdom and cure many ailments, making it an interesting possibility for a blue-eyed girl. Lazuli — or Azure or Blue — are other options. 

Lapis

Leo is a strong-yet-friendly name that was common among the Romans, used for thirteen popes, and is now at its highest point ever in the US thanks in part to Leonardo "Leo" DiCaprio.

Derived from the Latin meaning "lion", Leo is one of those names, like Luke and Finn, that many people assume must be short for something but that is authentically a complete name in its own right. That said, Leo can but short for any number of names, from Leonardo in Latinate languages to Leon and Leopold in Germanic languages. We've even heard of little girl Leonoras and Leonies called Leo: How cute is that?

Leo's simplicity makes it an international star, ranking in the Top 100 in countries as diverse as Ireland and Israel, Spain and Sweden, Austria and Australia. Leo is a truly diverse name, a perfect choice for any family crossing countries or blending cultures.
 
Leo's only real downside is its universal popularity and familiarity. If you call your child Leo, you and they will almost certainly encounter many other Leos over the years of all types and ages. Plus or minus? Or both?
 
Penelope Cruz and Javier Bardem called their son Leo, as did actress Kim Raver, NASCAR driver Jeff Gordon and Kristin Olson. 
 Famous Leos of the past include Pope Leo the Great, a number of early saints, and Leo Tolstoy, as well as Dead End Kid Gorcey, colorful baseball manager Durocher, influential gallerist Castelli and the leonine MGM icon. There have been Leos seen on everything from The West Wing to Charmed to Grey's Anatomy to Seinfeld's Uncle Leo.

The name of the Roman goddess of the moon, Luna is derived straight from the Latin word for moon, luna. Luna may be the name most likely to surprise someone from an older generation by its Top 10 status in the US and its widespread international popularity.
Often ranked as Number 1 on Nameberry's internal charts, the strong but shimmery Luna is among the Top 100 names for baby girls in a wide range of countries around the world, from France to Italy to Germany, Scandinavia to Slovenia to Spain. It's simple, easy to spell and pronounce, and remarkably diverse.
 And it's also got deeper roots than you might imagine. It was somewhat popular in the US as a baby name around the turn of the 20th century, reaching a high of Number 403 way back in 1881.

Luna's popularity is undoubtedly influenced by the Harry Potter character Luna Lovegood and several high-profile celebrity babies, notably the oldest daughter of Chrissy Teigen and John Legend. 
 Along with its celebrity connections, Luna's popularity is partially driven by its standing as a mythological name. Luna’s divine complement is Sol, the god of the Sun. In Roman art, Luna is often depicted driving a chariot.
 
Luna makes another appearance as the endearing oddball Luna Lovegood in the Harry Potter series, who was central enough to the story to have Harry give his daughter Luna as a middle name, and as the True Blood teacher-shapeshifter character, Luna Garza. 
 
Along with Chrissy Teigen and John Legend, other celebrities who named their daughters Luna include Penelope Cruz and Javier Barden as well as Constance Marie. Joely Fisher and Ellen Pompeo have used it as a middle. Uma Thurman and Arpad Busson use Luna as the nickname they call daughter Rosalind Arusha Arkadina Altalune Florence.
 
Luna is also among the <a href="https://nameberry.com/popular-names/dogs">most popular dog names</a>.

Luna

Harley is a tough guy, while the rhyming Marley has a softer, gentler image. The name brings to mind reggae great Bob Marley, as well as the lovable dog from bestseller Marley and Me.
 
Marley is among the <a href="https://nameberry.com/unisex-names">top unisex names</a> in the US today.

Marley

Mazarine is a deep blue color also used as a first name in honor of Cardinal Mazarin, a leader of France in the 17th century.  As a first name, Mazarine is as charming as it is unusual.

Mazarine

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 stylish than the English Ocean or Oceana.
 This group of names all relate to the ancient Greek Oceanus, god of the open sea and the oldest Titan, son of Uranos and Gaia. If you're looking for uncommon <a href="https://nameberry.com/list/641/names-that-mean-ocean">names that mean ocean</a>, this is one to consider.

Oceane

Most of us had never heard this lovely Welsh name with links to the moon until we heard the 1976 smash hit Fleetwood Mac song of that name, with lyrics by Stevie Nicks. That same year it popped onto the U.S. Top 1000 at Number 593. 
 
After giving his four boys extreme rebel names, director Robert Rodriguez bestowed this sweet name on his first daughter. More recently, Jenna Dewan chose it for her baby girl.
 
According to Celtic legend, Rhiannon's birds sang more sweetly than any others; she herself was known for being forthright and witty.
 
Rihanna looks similar but is unrelated.

Rhiannon

River shares the tranquil feeling of all the water names, and seems to have pretty much escaped its past strong association with River Phoenix and his unfortunate fate. Actor Joaquin Phoenix named his son with actress Rooney Mara after his brother River.

River's popularity is rising for boy genders, but it's still predominantly given to baby boys. Last year nearly 3500 boys were named River vs. about 1900 baby girls.

Keri Russell and the Taylor Hansons both have sons named River, Natasha Henstridge used it as the middle name of her boy Tristan, and Jason Schwartzman pluralized it for daughter Marlowe Rivers.

River

Sapphira is a lovely name which unfortunately has an unsavory Biblical history. The New Testament Sapphira was killed by God for lying about a tax payment.
 There's a Willa Cather novel called Sapphira and the Slave Girl, and in the book Eragon, it's the name of a dragon (spelt Saphira).

Sapphira

Sapphire goes waaaaay beyond Ruby and Pearl. This September birthstone, occasionally used a century ago, might be worth a reappraisal, perhaps as a Sophie/Sophia alternative. Sapphire is the pseudonym of Romona Lofton, who wrote the book Push, which was turned into the movie Precious. Sapphire entered the Top 1000 for the first time in 2022, and is proving to be one of the freshest gem names for girls. Another intriguing variation is the lovely Sapphira.

Sapphire

A pretty, rarely used Greek name, Thalassa is the ancient personification of the sea, particularly the Mediterranean, who is sometimes considered the mother of Aphrodite.
In 1991, a newly discovered moon of Neptune was dubbed Thalassa.
 This name would make a highly original, yet accessible and delicate choice.

Thalassa

Unusual and beautiful blue green color and name possibility, a la Cerulean. 

Viridian

In Slavic myth, this name belonged to the water priestess and protector of warriors. 

Zarya

Zinnia is an unusual floral choice with a bit more edge and energy than most and beginning to find its way onto namers' wish lists of botanical possibilities. Named after an eighteenth German botanist called Johann Gottfried Zinn, it appears in Roald Dahl's Matilda as the young protagonist's mother.
 In the language of flowers, Zinnias symbolize remembrance.

Zinnia

caet's list "Color/Nature/Universe Names" of 30 great name ideas: Ariel - Zinnia!