One of the most romantic of appellations, Caspian is a geographical name referring to the large salty sea between Asia and Europe. It's also the name of the hero of C.S. Lewis's beloved Chronicles of Narnia, Prince Caspian.

Rugged but gentle at the same time, Cassian is a saintly and stylish choice that was derived from the name Cassius. Before 2017, it was an obscure choice, given to a tiny handful of boys each year. As of 2023, however, it's become one of the top ten fastest-rising names in the US, more than doubling in usage since 2022 and edging closer towards the Top 500.

This anglicized form of the Irish surname Ó Cathaláin links back to the Irish given name, Cathal. Similar to Callum, Caleb, and Calvin, it might feel more usable outside of Ireland and Scotland than its origin name.

Both offbeat and upbeat, this evocative traditional Irish name that runs through Celtic mythology is known here via award-winning novelist Cormac McCarthy (born Charles). The author's adopted name is related to Cormac Mac Airt, one of the great legendary high kings of Ireland.

A handsome Irish name for boys, very popular in that country, but in the US this traditional spelling might cause pronunciation problems. Still, whether Cian or Kian, it's simple and straightforward enough for the initiated. Cian is rising in the British popularity charts.

Cressida is a pretty mythological and Shakespearean heroine name much better known in Britain than it is in the US. Given to just 7 girls in a recent year, it shares the cool golden meaning of Aurelia, Orla, and Goldie, and offers cute Cassie- alternative nickname Cressie, along with Ida and Sid too.

Strong and modern, Cade shot up the popularity lists around the millennium—it was as high as Number 201 in 2001. Now, it has declined in popularity slightly, but nevertheless remains in the US Top 300, given to around 1200 babies each year. Combined with all the baby Kades, Cadens, Kaidens and Kaydens however, it might feel even more popular that it actually is.

Carter has ranked in the Top 100 since the the turn of the millennium, but despite its recent popularity, it's not a trendy new name. In fact, Carter is one of those names that just misses ranking in the US Top 1000 for its entire 140+ year history.

Carson is one of the most long-running popular androgynous baby names, with a dash of the Wild West via the legendary Missouri frontiersman Kit Carson. Dating back to when it was the name of Nancy Drew's Dad, Carson is still steadily in the Top 200 baby names.

Cameron was once a rising star for boys only, but Cameron Diaz almost single-handedly transported it into the unisex camp back in the 80s.Though there are still eight times as many boy babies named Cameron as girls, it is currently in the US Top 600, where it is joined by Camryn and Kamyn.

Calix is once-obscure name that is starting to see some use in the US, where 62 baby boys were named Calix in 2024. An indirect influence is the actress Calista Flockhart, who introduced Americans to the female version of this attractive Greek name to prominence.

In Greek myth, Circe, daughter of Helios, the sun, was a sorceress living on the island of Aeaea, who could turn men into animals with her magic wand, which is just what she did to Odysseus's crew in Homer's Odyssey, transforming them into swine. All was forgiven, however, as Circe and Odysseus later had a child together—Telegonus.

Clay is a rich, earthy one-syllable name with a southern-inflected handsome-rogue image, featured on soap operas and reality TV. Its longer forms are Clayton and Clayborne.

This evocative short name is suddenly chic — it was recently chosen by Jennifer Lawrence for her baby boy. JLaw's son's name honors Cy Twombly, the influential mid-century American artist. Born Edwin Parker Twombly Jr., both Cy Twombly and his father shared a nickname after baseball player Cy Young (himself born Denton True Young).

For a generation, this name will always be linked to 1990s hit TV series Friends. Whether this is a positive or a negative will depend on your fondness for the show, and character Chandler Bing, but this name deserves consideration beyond these connotations: Chandler is a fresh take on the professional surname names.

Corwin is an upstanding surname name that has been seen occasionally as a first in literature, but rarely in real life. But maybe with the recent acceptance of Darwin, that might change.

Infinitely preferable to the tease-inspiring English version of the word.

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.

Romantic, and classy, this variation heats up Caroline and modernizes Carol, adding a southern accent. A popular choice in Portugal, Spain, Mexico, and Italy, it recently entered the US Top 500.

Cyra is an unusual name that can be pronounced either SEER-a or SI-ra, rhyming with Keira or Tyra. This name may be a feminine variation of Cyrus but is also a Persian name that stands on its own. One noted bearer is writer Cyra McFadden.