Reef is an uncommon nature name with mainstream potential. Its laidback, beach-y vibe makes it a perfect choice for ocean lovers.

Blue suddenly came into the spotlight, as the unusual color name chosen by Beyonce and Jay-Z for their baby girl Blue Ivy. Blue is also a starbaby middle name du jour, used for both sexes in different spellings and forms, from John Travolta and Kelly Preston's Ella Bleu to Alicia Silverstone's Bear Blu. Dave 'The Edge' Evans named his daughter Blue Angel back in 1989.

Gail was a mid-twentieth century favorite, which has been far surpassed by its original form, Abigail and nickname Abby. Spelling variations include Gale and Gayle, the latter represented by TV journalist and Oprah bestie Gayle King. Gail was most popular in the 1950s, when it was in the Top 40, and could rise again, possibly as a middle.

Enough parents have found naturalist Charles Darwin, the father of the theory of evolution, a worthy hero to keep Darwin relatively consistently in the Top 1000. It has a lovely meaning too—"dear friend."

Ajax is the name of two Greek heroes, both who fought in the Trojan war and feature in Homer's "Iliad". Distinctive yet familiar in sound, thanks to similar choices like Jack, Asa, and Ajay, Ajax is also the name of a foaming cleanser in the US, and if you find that reference too strong, you might try the shortened Jax instead.

Nickname name in the era of Grease. Sandy fits well in the era of boyish nicknames for girls - a la Scottie and Stevie - or as an alternative to the rapidly rising Goldie. While it peaked in 1960, Sandy is still given to about 60 baby girls each year.

This attractive mini-name combines multiple trends: the R initial, vowel-ending boy names, and a fantastical meaning.

The lovely Sereia is the Portuguese word for mermaid but can also be used as a name. English speakers may shy away from the name because of pronunciation questions and indeed, any little Sereia growing up in London or Chicago will encounter many questions and mispronunciations. But it's not difficult to say once you know it and Sereia pay countervailing dividends with its beauty.

Most Bills today are dads...or grandpas. The younger Williams are usually nicknamed Will, or called by their full names.

Ariel is a male Biblical name, seen there as the messenger of Ezra, and also used as a symbolic name for the city of Jerusalem, while Shakespeare used it for a (male) sprite in The Tempest.

A strong, eminently usable which is currently highly fashionable in its native Scotland, but little known elsewhere. With its cool two-syllable, n-ending shape and attractive nature meaning, Struan is a fresh Scottish name that feels ripe for import.

Rarely heard, and when it is, usually attached to a witch. Historically, though, Wanda was a legendary eighth century queen of Poland, and in literature it is the central character of Ouida's eponymous novel Wanda. A musical namesake is the great Polish harpsichordist Wanda Landowska.

Whimsy is a new entry to the ever-expanding word name lexicon, sister for Pixie and Bliss. While it has an undeniable offbeat English aristocratic charm (maybe we're thinking of Dorothy Sayers' fictional detective Lord Peter Wimsey, whose middle name was Death?), we see this as more fitting for a middle than a first name.

As a name, Topaz is a quietly used option, with a distinctive ending and a sleek but sassy feel. As a golden gemstone, it is said to have energizing properties and bring good luck to those who wear it. It is also the the birthstone for November, making it an ideal choice for a spirited November baby.

Gilda, although related to the words gold and gilded, has definitely tarnished. It once shimmered with the seductive image of Rita Hayworth in the film Gilda, then was associated with the beloved early Saturday Night Live star Gilda Radner. In opera, Gilda lives on as the name of the daughter of Rigoletto.

Shelly is a feminine name that originated as a diminutive of Michelle or as a reference to seashells, giving it both personal and nature-inspired origins. Popular during the 1960s and 1970s in English-speaking countries, Shelly has a cheerful, friendly quality that made it a favorite during this period. The name evokes coastal imagery and has a naturally pleasant sound. While it can stand alone as a given name, Shelly continues to serve as a nickname for Michelle, Rochelle, or Shelby. Though its peak popularity has passed, Shelly maintains an unpretentious charm and familiarity. The name's association with seashells gives it a subtle nature connection that appeals to parents drawn to ocean themes.

Marlin is a masculine name with multiple origins and meanings. It derives primarily from English surname traditions, originally denoting someone who lived near a small lake (mere) or possibly from the bird name 'merlin.' The name also inevitably brings to mind the marlin fish, a powerful ocean predator known for its strength and fighting spirit. Marlin gained modest popularity in the United States during the mid-20th century but remains relatively uncommon. The name carries associations with nature, the sea, and rugged independence. It combines traditional masculine qualities with distinctive character, making it appeal to parents seeking a name with strong imagery and outdoor connections without being overly common.

Peaking at #9 in 1982, Crystal's popularity in the 70s and 80s stems from its sparkling natural namesake and several notable bearers, like country music singer Crystal Gayle and Dynasty character Krystle Carrington. But it has since lost some of its luster for American parents, now ranking in the mid-600s. Ruby, Gemma and Pearl are fashionable alternatives, but nowadays Crystal could actually be a more unexpected choice for your little gem.

Jupiter's partner Juno has entered the mainstream, so it's possible that her divine mate could follow. But not necessarily for boys — Jupiter is currently mostly female in the US, thanks to its similarity to Juniper. Stars including Ed Sheeran and Ashley Tisdale recently welcomed daughters named Jupiter, which could shift the balance even more towards the girls.

More common as a dog name than a baby name for now, but that hasn't stopped Milo and Rex rising back up the charts! Lovers of edgy o-ending names like Otto, Arlo and Cosmo might like this starry-eyed possibility.