My favorite girl names of all time

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.

Melodic and lively, Delilah has cut itself (mostly) free from its treacherous past to become a contemporary favorite.

Haisley, but with more pizzazz.

Khaleesi is an invented name introduced to the world by inventive and prolific author George R. R. Martin for his wildly popular Game of Thrones series—it's Dothraki for "queen" and is one of the titles of the character Daenerys. It entered the US Top 1000 in 2014.

This Olde World name with a large measure of European style makes an offbeat possibility for the bold baby namer in search of interesting Italian names for girls. Currently very popular in its native Italy, Ludovica is an unusual path to all the great Lu nicknames, like Lulu and Lula.

Mignonette is kind of a diminutive of a diminutive. Mignon is the French word for cute, so Mignonette is more or less cutie.

Persephone is the esoteric name of the Greek mythological daughter of Zeus by Demeter, the queen of the harvest. After she was kidnapped by Hades to be Queen of the Underworld, it was decreed by Zeus that she would spend six months of the year with her mother, allowing crops to grow, and six in mourning, thus accounting for the seasons.

A modern choice for girls riffing on the popular unisex name Quinn, with an extra syllable to add substance and formality. And Quinn is still available as a nickname!

Asking for trouble. Rebel Wilson is a hilarious Australian actress who puts a female spin on this contemporary badass baby name. Still, we think this name is truly gender neutral – though hardly neutral in any other way. Rebel is undoubtedly one of the edgiest girls' names starting with the letter R.