Best One-of-a-Kind Names for Girls
Updated Sun May 04 2025
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Rare girl names that nobody (literally!) in the US include the following, all ranking below the five-baby cutoff necessary to make the Social Security extended list.
Among the coolest rare girl names are vintage gems such as Leocadia, Ottoline, Effia, and Zephyrine. Other literally unique girl names include hot international choices Madelief, Lowri, and Petronilla, and nature names Freesia, Quarry, and Plum.
Among these one-of-a-kind girl names are many classic choices as well as new and unusual name ideas.
If you want a truly rare name for your baby girl, here are our suggestions, ordered by their current popularity on Nameberry.
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- Kirrily
Origin:
Aboriginal, AustralianMeaning:
"tree bark or leaf"Description:
Kirrily, which rhymes with cheerily, is a name that's uniquely popular in Australia. It originated in recent decades as an elaboration of several similar names – the European Kyra or Keira, the Maori Kiri which means tree bark, or the Aboriginal word kira which means leaf – plus the lee sound.
- Endellion
Origin:
Cornish place and saint's nameMeaning:
"fire soul"Description:
Endellion is the name of an early saint who was a daughter of King Brychan and goddaughter of King Arthur whose life is commemorated by the Cornish village of St. Endellion. This intriguing ancient name was brought into modern usage by British Prime Minister David Cameron, who used it as one of the middle names for his fourth child, a baby girl.
- Bluebell
Origin:
Flower name from EnglishMeaning:
"blue bell"Description:
Bluebell is one flower name that is used very quietly. Geri "Ginger Spice" Halliwell joined her former Spice Sisters in creative baby-naming with this adventurous — some might say outlandish — choice. Andie MacDowell has a granddaughter named Bluebell Coyote through her daughter Rainey Qualley.
- Ianthe
Origin:
GreekMeaning:
"purple flower"Description:
Like Violet, Lavender and Lilac, Ianthe is a purple flower name. Chosen by the poet Shelley for his daughter, Ianthe has a poetic, romantic, almost ethereal quality. In the ancient myth, she was the daughter of Oceanus, supreme ruler of the sea, and also a Cretan woman so beautiful that when she died the Gods made purple flowers grow around her grave.
- Delphi
Origin:
Greek place nameMeaning:
"of Delphi; womb"Description:
An interesting unisex possibility, with an air of mystery connected to the Delphic Oracle, the most important oracle in ancient Greece; it was also a major site for the worship of the god Apollo.
- Plum
Origin:
Fruit nameDescription:
British-born novelist Plum Sykes has taken this rich, fruity name out of the produce section and put it into the baby name basket. It's more appealing than Apple, more presentable than Peaches. The French equivalent, Prune, is very fashionable there but would not fly with English speakers.
- Liliosa
Origin:
SpanishMeaning:
"lily"Description:
Liliosa, one of the most extravagant forms of the ever-more-popular and varied Lily family, is an ancient saint's name that's a perfect candidate for revival by parents who love the double-L flower name trend but want a distinctive variation. Saint Liliosa was one of the martyrs of 9th century Cordoba, along with her husband Felix and cousins Aurelius and Natalia — all names newly fashionable in the modern world.
- Whimsy
Origin:
English word nameMeaning:
"whimsical or fanciful"Description:
Whimsy is a new entry to the ever-expanding word name lexicon, sister for Pixie and Bliss. While it has an undeniable offbeat English aristocratic charm (maybe we're thinking of Dorothy Sayers' fictional detective Lord Peter Wimsey, whose middle name was Death?), we see this as more fitting for a middle than a first name.
- Kerensa
Origin:
CornishMeaning:
"love"Description:
Kerensa, forever romantic, is a rare Cornish name spelled with an 's' or 'z', the most modern of the Karen family. Kerensa (or Kerenza) has ties to the Welsh Cerys.
- Nephele
Origin:
GreekMeaning:
"cloudy"Description:
An enchanting ancient Greek name belonging to the Greek goddess who was created from a cloud by Zeus and so became goddess of the clouds and mother of the centaurs. The name Nephele is not widely known but as among modern parents become used to Phoebe, Penelope, and Persephone, it may become one of the ancient Greek goddess names that's back in the mix.
- Melisande
Origin:
French form of Millicent, GermanMeaning:
"strong in work"Description:
This old-time fairy tale name is rarely heard in the modern English-speaking world, but it's so, well, mellifluous, that it would make a lovely choice for a twenty-first century girl--a romanticized tribute to an Aunt Melissa or Melanie.
- Desdemona
Origin:
GreekMeaning:
"ill-starred"Description:
Desdemona is as Shakespearean as a name can be, but because the beautiful and innocent wife of Othello came to such a tragic end, her name has been avoided for centuries. But at this point in time, there might be some adventurous parents willing to overlook that.
- Sophronia
Origin:
GreekMeaning:
"sensible, prudent"Description:
A name some people first encountered in the old children's book series The Five Little Peppers, in which Sophronia, the youngest of the Peppers is nicknamed Phronsie.`It was also used by Dickens in two of his novels: The Old Curiosity Shop and Our Mutual Friend.
- Cia
Origin:
English or Swedish diminutive of Cynthia, Greek, or Cecilia, LatinMeaning:
"moon goddess, woman from Kynthos; blind"Description:
What's Cia short for? Cynthia or most any other C-name. Stylish in its sleek Mia-Nia minimalist feel, but may remind some of the Central Intelligence Agency.
- Jocasta
Origin:
Greek, meaning unknownDescription:
Jocasta is a mythological name fashionably used in England, but mostly ignored here. She was the mother of Oedipus, King of Thebes, whom he (oops) unwittingly married. If you can ignore that small error in judgment, you'll find an interesting and attractive J name that's neither overused nor terminally dated.
- Aphra
Origin:
Hebrew, variation of AphrahMeaning:
"dust"Description:
Aphra would make an interesting choice-- especially since it's the name of the first professional female writer in English, the seventeenth century's Aphra Behn. Born in 1640, she was a prolific dramatist of the English Restoration, and a spy.
- Sidonie
Origin:
LatinMeaning:
"from Sidon "Description:
Sidonie is an appealing and chic French favorite that is starting to attract some American fans as a fresher alternative to Sydney. Also spelled Sidony, Sidonie was the birth name of the French novelist Colette.
- Pomeline
Origin:
French, related to "apple"Meaning:
"apple"Description:
A rarely heard--even in France--name, most prominent as the third name of Charlotte Marie Pomeline Casiraghi, the daughter of Princess Caroline of Monaco and granddaughter of Grace Kelly.
- Eithne
Origin:
GaelicMeaning:
"nut kernel"Description:
Pretty and soulful name of a goddess from Irish mythology and several Irish saints. Singer Enya, born Eithne Ní Bhraonáin, has made the Anglicized spelling familiar. Eithne comes from the vocabulary word "kernel", which was used as a term of praise in old bardic poetry.
- Madelief
Origin:
DutchMeaning:
"daisy"Description:
Madelief is an uncommon name but not unheard of in the Netherlands, where 123 girls were called Madelief in one recent year. With its soft sounds and similarities to all those "Madeleine" type names as well as names ending in "eef/eev" sounds (Aoife, Eve, Genevieve), Madelief has potential in English-speaking countries to be a fresh and pleasant change from Daisy, Margaret and Madeleine.