The phonetic Carolyn spelling, which was very popular from the 1920s to the '60s, has been steadily on the wane while Caroline herself has stayed strong.

Francisco is one of the more popular Spanish names for boys in the US, which is unsurprising given its popularity back in Spain and Portugal as well as Latin America, coupled with its classic status. It also has a cool hipster vibe to it, given the reputation of the city of San Francisco.

Upper-crusty nickname occasionally used in Britain, particularly in 1930s novels featuring significant garden party scenes, but eclipsed here by Carrie et al.

Once a common boy name in Ireland, the dynamic Darby now has a definite unisex feel. A bit like a mash up between Darcy and Ruby, it appeared in the US Top 1000 in the 90s, peaking in 1995 when it reached #499. It's likely this sudden interest in Darby was owing to the 90s book and film, The Pelican Brief, starring Julia Roberts as a law student called Darby.

Spirited and bubbly, but handsome and preppy too, Darby is a surname style choice that fits in well with the likes of Alby and Lennox.

One of the classic hippie word names. In the 1970s, actors Barbara Hershey and David Carradine gave this name to their son...who later changed it to Tom.

Carlotta has a large measure of finger-snapping charm and substance — despite being a not too pleasant character in The Little Mermaid. Carlotta is also the diva/prima donna in The Phantom of the Opera, and there was an Empress Carlotta of Mexico.

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.

Carrie lives on mainly on the screen, as the new/old antiheroine of Stephen King's classic Carrie, as turn-of-the-21st-century diva Carrie Bradshaw of Sex & The City, and as Claire Danes' Emmy-winning character Carrie Mathison of Homeland.

This short form has been pretty much replaced by Frankie, however, it could fit in with other clunky but charming names, like Peggy, Bess, and Enid.

Charlene is a Charlotte variation that, along with similar names like Arlene and Marlene, spiked in popularity in the 1940s and fifties, reaching a high of Number 100 in 1949. Most parents today would prefer one of the note classic versions -- or even nickname Charlie.

Dermot is an appealing, relatively undiscovered Irish mythological hero's name long popular in the Old Country, and imported into the American consciousness by actor Dermot Mulroney. We see it in the next Celtic wave following Connor and Liam.

Francie is one of the most neglected nicknames for Frances, despite having more style value than Franny and Fanny and being more unique than Frankie. We'd love to see it get more use, whether as a Frances short form or as an independent name.

Deriving from the same East Asian root as Malaysia and Malay, Malaya is a name that recalls the more popular Maya and the name of 2014 Nobel Peace Laureate Malala Yousafzai. It first appeared in the US Top 1000 in 2006.

One of the most attractive and unusual spins on the "Fran" franchise.

Trapped somewhere in the nether region between Haddie and Catie, with the added confusion of sounding like someone who works on a golf course. Caddie Woodlawn was a TV heroine of the Old West in the 1980s. Caddie had its moment, but we don't see it becoming one of the more popular girl names starting with C.

Franz is the German equivalent to Francis, and you'll be hard-pressed to find a Franz outside of countries with Germanic origins. In America the name is often associated with celebrated author Franz Kafka, who was born in Prague.

Saoirse meets Orla (or Orlaith), Saorla blends with elements soer and flaith giving it the meaning "free ruler, free princess". It ranked in the Irish Top 100 back in the early 2020s, but is rare elsewhere.

As this word is less often used to mean derriere, it becomes more possible to view Fanny as the kind of appealingly quaint nickname name, like Josie and Nellie, that many parents are favoring now.

Lotte is a short form of Charlotte and a name used in its own right in Scandinavia as well as Dutch- and German-speaking countries. It’s unlikely to catch on in the US, where even Lottie hasn’t reached its full potential. Unisex Charlie will remain Charlotte’s nickname of choice for the foreseeable future.