Christina, a pretty and feminine, crystal clear classic, may be trending downward, but it's never out of style. Christina's short forms Chris, Christie, and Tina all seem dated—making the royal Christina best used in its full glory.

Calista Flockhart spotlighted this lovely Greek name that has a long future in the English-speaking world. Kallista is another spelling; Calixta and Calixto are related.

Forget the oil. It's one of the twins that make up the constellation Gemini, and a mythological name on the cutting-edge of fashion; used by Metallica's James Hetfield.

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.

Reference to the mythological Three Graces of womanly charm, this one representing charity. Pronounced in Greek as starting with a back-of-the-throat H sound, most English-speakers would translate that to something closer to KAR-is. It's also the name of a girl who lived in Atlantis in the novel Taliesin, and appears in the Margaret Atwood novel The Robber Bride.

This hyper-rhythmic name has two evocative references. In Greek mythology, she was an island nymph, a daughter of Atlas, who delayed Odysseus from returning home. It is also a genre of West Indian music, originating in Trinidad and Tobago and largely popularized in the States by Harry Belafonte.

With a long and noble history -- Cyprian was one of the great Christian Latin writers -- this could make a highly unusual but meaningful choice.

Corisande is a very unusual, haunting choice, with the aura of medieval romance--it is found in early Spanish romantic tales, arriving in the English-speaking world in the nineteenth century.

Calixto is known in Spain as the name of three popes, one of whom was the martyr, Callixtus I, regarded as a saint. Calixto has a lot of energy and futuristic spirit, thanks in part to the attention-grabbing 'x.' He is the main character in the Spanish classic, Fernando de Rojas's Tragicomedy of Calixto and Melibea.

Clio is the name of the ancient Greek mythological muse of history and heroic poetry, one that is rich with modern charm and would make an intriguing choice, especially thanks to its dynamic o-ending.

Rhythmic route to the nickname Cal. This musical moniker is another great example of a traditionally feminine name that could easily go masculine.

Trending down, along with others of both the Car and the issa groups.

Cytherea, a place-name that is the home of Aphrodite, seems stuck in ancient Greece.

Sometimes used as a short-form of Catholic Pope name Anacletus, Cletus is an ancient name that has not-yet found the popularity of Theodore, Leo, Atticus and Max. It perhaps suffers from its association to the yokel character in The Simpsons , but we think it's time for a reconsideration, given how well it fits into several current trends. Nickname Clete is cute as a button!

Crisanta, while not related to Christine, would make a pretty and highly unusual alternative to that tried-and-true name. Because of its relationship to the chrysanthemum, the flower of the month of November, it's one of the recommended names for Scorpio babies as well as names for November babies. Crisanta might also give you a fresh route to nicknames like Cris, Crissy, or Cristie.

Delicate and gentle old-fashioned name, the kind found in early English poetry. While Corinna and the original Green Korinna are technically diminutives of the ancient Kore, now the popular Cora, this name will often be mistaken for other similar-sounding though unrelated names, such as Karenna. But it's pretty and is backed by more tradition than you'd guess.

The Anatolian mother goddess Cybele had a place in Greek, Roman, Trojan, and Anatolian mythology. Today, she has special meaning as a symbol of gender nonconformity.

Cleora is a now-extinct name (there were no babies named Cleora recorded in the U.S. since 1982) that achieved some standing in the early 20th century thanks to the craze for all things Egypt-related. A range of Cleopatra diminutives, including Cleo, Cleora, Cleona, and Cleola, made the Top 1000 then as the ancient tombs were opened in Egypt.

Calista Flockhart may have made her variation of this beautiful Greek name familiar to modern Americans, but the even-edgier x version was the name of an earlier feminist heroine: a character in Kate Chopin's The Storm.

The title of a Shakespeare play based on legends featuring the early Celtic King Cunobelinus, whose name derives from the Gaulish sun god Belenus.