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. Both Aboriginal actress Kirrily Nolan and Australian fashion designer Kirrily Johnston have helped popularize the name, which has spawned a countless number of spelling variations. Kirrily is one of the unique baby names to watch.
- 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.
- 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.
- 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.
- 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.
- Eluned
Origin:
WelshMeaning:
"idol, image"Description:
Romantic and mysterious, Eluned's beauty and intelligence were legendary in Welsh legend; she was the handmaiden of the Lady of the Fountain in a Welsh Arthurian romance, who had a magic ring that made the wearer invisible. Pronunciation is usually similar in emphasis to Eleanor, but with ned instead of nor at the end. However, it's sometimes also pronounced el-LIN-ed or even shortened to Luned, the sounce of Lynette, in Tennyson's Gareth and Lynette.
- 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.
- 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.
- 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.
- Alouette
Origin:
FrenchMeaning:
"lark"Description:
Alouette is a sweet Gallic twist in the stylish bird name genre made familiar via the charming French children's song, Alouette, gentile alouette.
- 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.
- Cerelia
Origin:
LatinMeaning:
"relating to springtime"Description:
Cerelia is a melodic and unusual choice, perfect for a child born in April or May. Another version is Cerella.
- 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.
- 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.
- Mabli
Origin:
WelshMeaning:
"lovable"Description:
Mabli is the sweet Welsh form of Mabel; like its English cousin, it’s starting to make a modest comeback in Wales as part of the trend for vintage baby names from a century ago.
- Ottoline
Origin:
French and English, diminutive of OttolieMeaning:
"prospers in battle"Description:
Curiously appealing, in a hoop-skirted, wasp-waisted way, Ottoline has recently entered the realm of modern possibility, especially since Sienna Miller chose it as the middle name of her daughter Marlowe.
- Thalassa
Origin:
GreekMeaning:
"the sea"Description:
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.
- Amandine
Origin:
French, diminutive of AmandaMeaning:
"much-loved"Description:
This fragrant, almond-scented name has hardly been heard in this country, which is a pity--we've loved it since John Malkovich used it for his now grown daughter.
- Olwen
Origin:
WelshMeaning:
"white footprint"Description:
Olwen is a Welsh favorite, the name of a legendary princess in what is believed to have been the earliest Arthurian romance, and in fact one of the first recorded examples of Welsh prose.
- Anemone
Origin:
Flower name; GreekMeaning:
"daughter of the wind"Description:
Anemone is a floral name that relates to the ancient Greek myth of the famous love story of Aphrodite and Adonis, in which Aphrodite transforms her wounded lover's blood into a flower, the crimson anemone, whose blossoms are opened by the wind — accounting for its other name, windflower.