Ellis is a former Old Man Name turned gender-neutral choice for the 21st century. It's one of the less used names in the currently popular El-family, unless you're in the UK, where it's a Top 100 choice.

This ancient name, also spelled Caspar, is finally shedding its ghostly image and moving into the 21st century. Popular in the Netherlands and Scandinavia, where it's sometimes shortened to Cas, Casper could ride the style coattails of cousin Jasper.

If you're looking for a name that's light and breezy, this could be it. A name from mythology: Zephyrus/Zephyr was the Greek god of the west wind, and with its similarity in sound to the likes of Stefan or Seth, its zippy Z initial and cool Y, it is primed to rise up the US charts.

Griffin is one of the newer and most appealing of the two-syllable Celtic surnames. In English, griffin is the name of a mythological creature, half eagle, half lion. It re-entered the list in 1983 after an absence of 75+ years.

Ari, the short form of Ariel (or any other Ari- beginning name, such as Aristotle) stands up better as a boys’ name than its progenitor does. It is also short for Aristotle, as in Onassis, and is a prominent character on TV's Entourage -- the uberagent Ari Gold.

With a touch of celestial power, a hint of clunky charm, and the totally cool -o ending, Cosmo may well be finally shaking itself free of both the Seinfeld association (which made it a punchline of a joke) and the cartoon fairy association from The Fairly OddParents. In fact, it is in the Top 1000 in the UK and a favorite on Nameberry.

A very popular unisex name in Japan, Ren is a concise and versatile choice that could work across multiple languages. A rising star in England and Wales where it ranks in the Top 1000, it is also on the rise in the US where it was give to nearly 90 girls and 200 boys in a recent year.

A modern, multifaceted name, Sage is short, sweet, and strong. A unisex possibility, it is also a virtuous word name associated with wisdom, and a nature name linked to a fragrant herb.

Effortlessly cool with a hint of the mystical, Phoenix rolls a lot of trends into one: it's a place-name and a bird name, it ends in the stylish letter x, it's got in-built nicknames, and it's unisex too. Familiar but not over-popular, Phoenix ranks in the US and UK Top 1000s.

This attractively energetic Italian version of the classic Matthew is primed to move further and further into mainstream American nomenclature. Mateo is technically the Spanish version, but many parents in the US use the two spellings interchangeably.

Popular in Croatia, Spain, New Zealand, and Slovenia, Niko has also been rising up the US popularity charts for boys since the late 2000s. Fresher than Nicholas, spikier than Nico, it currently ranks just outside the US Top 300.

Cato conjures up images of ancient Roman statesmen and southern antebellum retainers; it could have revival potential, with its 'O' ending and the current interest in the names of Greek and Roman antiquity.

Botanical choice that can work for either gender. Simple and straightforward. Caveats: rue means "regret" in English, and "street" in French. Now in the Top 1000 in England and Wales for girls and trending upwards in the US, it is nevertheless still given to a handful of boys each year. It could equally work as a nickname for a Ruben, Rudy, or a Rupert.

Nyx is the name of the Greek goddess of the night, and while it does lean feminine in the US, 26 boys did receive the name in a recent year. That meant nearly 30% of all babies called Nyx were boys.
Nyx may appeal as an alternative to Knox (or Nox), and to those who like Onyx, Lennox, and Phoenix but want something outside the Top 1000.

Russian forms, like Russian supermodels, are hot these days. This is a strong, worldly way to make Nicholas new; it was chosen for his son by Barry Bonds, Jr. Nikolai also comes with several attractive nickname options, including approachable Nik, spunky Niko, or even hip Kai. A traditional nickname for Nikolai in Russia is Kolya.

Hiro is an apt name for a hero of the show Heroes -- and for our times. Widely used in Japan, sometimes also for girls. Hiroshi is a long form.

Make that bird name, and while it does work for both genders, it's far more popular for girls, via Raven Symone.

The association with the infamous Nero, the fiddling Roman emperor, would be unavoidable. But there was also the detective Nero Wolfe, hero of many mystery stories.

The name of the Greek winged god of love (usually romantic and sexual love) may seem a lot to live up to, but like other deity names, it's on the rise. In a recent year, it was given to more than 130 boys in the US.

Wilde is a bold choice that equally fits in to a number of contemporary name trends. It's a daring, outdoorsy word name; a surname-style choice; a literary honor name; and a sound-alike for more popular choices such as Wilder, Wiley, Wyatt, and Wells. Best associated with the inimitable Irish author, poet and playwright Oscar Wilde, known for his wit, flamboyance, and literary talent, it was given to 12 boys in a recent year.