All the unusuals

Calpurnia is a name with a massive history. As the third and final wife of Julius Caesar, Calpurnia has been forever depicted in literature (Shakespeare) and film (Cleopatra; Rome) as a modest and sweet woman, utterly devoted to Caesar. She is said to have foretold his death and to have tried (and failed) to have warned him of the treachery of his trusted allies. Following Caesar's assassination, Calpurnia never remarried.

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.

Cecily is as dainty as a lace handkerchief. Cecily has a wide assortment of namesakes. One Cecily was the mother of King Richard III, whose beauty gained her the title "the Rose of Raby," Cecily Parsley is a Beatrix Potter bunny, Cecily Cardew is a character in The Importance of Being Earnest, and the author of the Gossip Girl books is Cecily von Ziegesar.

Celestine is a pretty, crystalline extension (actually a diminutive) of Celeste that would make a choice that is both delicate and strong. It is also a popular name in France.

Celtic goddess of poetry, though less-than-poetic name.

Common name in Wales that's all but unknown in the U.S. Certainly an attractive choice ripe for export. In the UK it sits at Number 330.

Cesarina, like the French version Cesarine, is a feminine version of Caesar. Cesarina has two potential pronunciations: one with the Italian "che" sound, one with the anglo "sez" sound. This is among the more unusual Italian names for girls.

Charlotte, the name of the young Princess of Cambridge, is the latest classic name to join Sophia, Emma, Olivia, and Isabella at the top of the popularity list. It is now among the most popular girl names in many English-speaking and European countries.

Clarimond is related to the Occitan name Esclarmonde, and is probably the more wearable of the two variations.

The obscure yet not unappealing name of a legendary heroine of Rome. The ancient Clelia escaped an Etruscan invader by swimming across the Tiber River.

Pronounced klo-TEELD, this name is well used in France, but rarely heard here; it has a chic and sophisticated air.

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.

Cressida is a pretty mythological and Shakespearean heroine name much better known in Britain than it is here — an imbalance the adventurous baby namer might want to correct.

Cyrilla is an obscure feminization of Cyril that's a bit buttoned-up but also intriguingly unique, with an authentic pedigree. Spelling Cirilla is more visible thanks to The Witcher series, in which its the name of the heroine Princess Cirilla, nicknamed Ciri. 40 baby girls were named Cirilla in the US in 2021, vs. only 10 called Cyrilla.

In Greek mythology, Daphne was the nymph daughter of Peneus, a river god. Peneus saved Daphne from Apollo’s romantic obsessions by transforming her into a laurel tree. It is from this myth that the plant genus daphne, which contains the laurel species, gets its name.

A punchy modern Cornish name derived from a place name, which is of disputed origin. It is sometimes said to derive from a rare Welsh name, Maeldaf, plus dinas, the Cornish for "fort". Another theory is that it comes from Cornish ty "house" plus malsai "eel" – likely a reference to Cornwall's fishing trade.

Demi appeared in the US as a baby name thanks to a single celebrity, actress Demi Moore, who put it on the Top 1000 throughout the 1990s. As her star faded, so did the visibility of the name, though now it is rising again on its own steam. It's popular in Europe, too, especially in The Netherlands. Demi may be that unusual name that's launched by a celebrity and then maintains its visibility all by itself.

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.

Despina is best known as the clever and wily maidservant character in Mozart's opera Così fan tutte. It is a name of Greek origin, derived from Despoina, who in Greek mythology was the daughter of Demeter and Poseidon.