Isla is a hit name throughout the English-speaking world but hasn't found the same popularity in other western countries, perhaps because its spelling and pronunciation don't make sense for those whose native language is not English. Think island without the final two letters.

Ella is a sweet, simple name that owes much of its current popularity to the popularity of other names, from Emma to Bella to Emily to Ellie.

Stella is a name with star quality and sparkle, that manages to sound both ethereal and earthy. Celestial but not otherworldly, it lands somewhere between the popular Ella and bold Seraphina.

Willa has become increasingly fashionable, with its combination of Willa (born Wilella) Cather-like pioneer strength and the graceful beauty of the willow tree.

Rose is derived from the Latin rosa, which referred to the flower. There is also evidence to suggest it was a Norman variation of the Germanic name Hrodohaidis, meaning "famous type," and also Hros, "horse". In Old English it was translated as Roese and Rohese.

The name of the Roman goddess of the moon, Luna is derived straight from the Latin word for moon, luna. Luna may be the name most likely to surprise someone from an older generation by its Top 10 status in the US and its widespread international popularity.

Ellie first took off in the UK—yes, in this nickname form—and this warm and friendly name has also become hugely popular here. In 2011, Ellie entered the US Top 100 girl names for the first time and has remained near the top of the charts ever since.

Mila is a popular name that took a 125 year nap, ranking in the Top 1000 in 1881 and then not ranking again until 2006, after actress Mila Kunis appeared on That 70s Show.

Isabella has been a Top 10 name for girls in the US for two decades now. The Latinate form of Isabel, a variation of Elizabeth which originally derived from the Hebrew name Elisheba, Isabella reigned as Number 1 in 2009 and 2010.

The name is derived from the term commonly used in the Book of Psalms, which has a many Hebrew scholars in confusion over its meaning. Given its context in the Bible, Selah is likely to mean "to praise" or "pause and reflect upon what has just been said." Lauryn Hill used this name for her daughter. It is the last word in Anita Diamant's novel The Red Tent.

Strong but sweet, Leah is a classic name that doesn't feel dull or dusty. It's got plenty of dignity, grace, and pluck, making it a solid choice in the 21st century.

A lovely musical name (remember the old Eric Clapton-Derek & the Dominos song?), Layla's seen a significant surge in popularity, partly partly all names with a double L are stylish, and partly because all the forms of the name push it into the Top 15 for girls.

Billie is a tomboy nickname name, part of the growing trend for using boyish nicknames for girls and now destined for stardom along with its most famous contemporary bearer, music sensation Billie Eilish.

Fresh, bright, and sunny, Della could be an alternative to Ella, Delilah, or Adeline. Familiar but not yet overused, it combines the elements of contemporary favorites with vintage charm.

A multicultural name, that's currently on style and fits right in with Kaia, Maya, Raya, and Mia. Currently in the Top 500 in both the UK and The Netherlands, it has several different origins and meanings.

The Lyla spelling variation has now superseded the original Lila — the former remains on the rise while the latter is consistently falling in popularity.

An attractive, widely appealing, multicultural option, Yuna has its roots in Japanese, Breton, Korean, Chinese. KPOP singer Yuna may be attracting some attention to her name, as might influencer Yunabugs who shares her life with her eight dachshunds on Instagram. Also used in the game franchise Final Fantasy, it is a popular choice in France, the Netherlands, and Switzerland.

Floral, bright, and subtly powerful, Gaia is a name with two separate origins. In Greek mythology, it is the name of the earth goddess and the universal mother, who takes her epithet from the Ancient Greek word for land or ground. It was this ecological element that led actress Emma Thompson to choose it for her daughter back in 1999, and it could hold similar appeal to green minded parents today.

Nola, a name with a sleek, enigmatic quality, was used for the much-pursued heroine of Spike Lee's 1986 breakout film, She's Gotta Have It, and again by Woody Allen in Match Point. It's a short form of the traditional Irish name Fionnuala. Nola reentered the US Top 1000 in 2008, for the first time in 50 years.

Belle has nothing but positive associations, from "belle of the ball" to "Southern belle" to the heroine of Disney's Beauty and the Beast. As if this weren't enough good things, Belle is also one of the most familiar and usable names that mean beautiful. Though it has been overshadowed by the Twilight-influenced Bella and longer forms like Isabella and Annabella, Belle has its own Southern charm and would make a pretty choice as a first or middle name.