Favorite Double Letter Names

Bonnie is an adorable nickname name, heading back up the popularity list after a 50-year nap. A Top 100 girls' name throughout the rest of the English-speaking world, Americans are later to jump on the Bonnie bandwagon but now it's trending here too.

An Anglicized form of the Irish surname Ó Cathaláin. It's a highly popular name in Scotland.

Pronounced KAY-nan, this Old Testament place name has a strong modern feel. It was one of the fastest-rising names of 2015, breaking into the Top 1000.

Cassia is related to the cassia tree, which has yellow flowers and produces a spice that can be a substitute for cinnamon. Keziah, the name of Job’s daughter in the Old Testament, derives from the name of the plant as well. Cassia also has ties to the Ancient Roman name Cassius, an Ancient Roman family name meaning "hollow."

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.

Dashiell, though missing from many other name sources, is among the hottest new names, chosen by such celebs as Cate Blanchett and author Helen (Bridget Jones) Fielding. With its great dash and panache, Dashiell is associated with detective writer Dashiell Hammett (born Samuel, as in Sam Spade, Dashiell being his mother's maiden name). Alice Cooper was ahead of the game: He named his son Dashiell in 1985.

Juliette, pronounced with the emphasis on the last syllable, adds a little something extra to Juliet. In the past years it has been rising up the chart.

Killian – aka Cillian – is a spirited yet resonant Gaelic name that was borne by several Irish saints and could make a distinctive replacement for the dated Kelly. Kylian is another spelling that's gaining traction, thanks to French soccer star Kylian Mbappé. Possible downsides: an unsavory first syllable and a connection to the trendy brew.

Molly is one of the original nickname names, ALWAYS ranking among the US Top 500 girl names since statistics began, in 1880. Molly peaked in 1991 only to rise just as high again in 2011, and though softening retains a good measure of popularity and charm.

Odessa, a Ukrainian port city, was given its name by Catherine the Great, who was inspired by Homer's Odyssey. It would make an original and intriguing choice.

Poppy, unlike most floral names which are sweet and feminine, has a lot of spunk. Long popular throughout the rest of the English-speaking world, Poppy is finally starting to rise toward the top in the US, where it entered the Top 1000 for the first time in 2016.

Tessa is one of those golden names that's been popular but not TOO popular for several decades now. Tessa has ranked in the Top 500 in the US since 1981 but has risen only once above Number 200.