A chic and sassy French choice, popular in France but likely to be confused with the more prosaic Alex in English-speaking countries. Although sometimes used in the US as a variant spelling of Alex, the French name Alix actually derives from a medieval French form of the name Alice or Adelaide.

Eryx has a sci-fi sound and deep roots. In Greek mythology, Eryx was the son of Poseidon and Aphrodite and a king in Sicily. He was a great boxer, but was eventually beaten by Heracles. He probably got his name from Mount Eryx in Sicily, now known as Erice. Never used before 2005, this could be a mythological gem to watch - and an alternative way to honor an Eric.

Bix is a cool and jazzy nickname name, thanks to that final x. It's largely associated with the legendary and influential cornet player (and inspiration for the novel Young Man With a Horn), Bix Beiderbecke. He was born Leon Bismark Beiderbecke and his nickname derived from his middle name.

Pax, one of the variations of names meaning peace that are newly popular in these less-than-peaceful times, got a lot of publicity when chosen by Brad & Angelina for their Vietnamese-born son. Parents attracted to Pax may also want to consider Paz, the unisex Spanish version, or Paxton, a growing-in-popularity surname choice that shares that magical X-factor.

Pronounced "crwa", this unusual name was chosen by Cedric the Entertainer for his son.

Despite its rakish western charm, still remains a cowboy costume without a real persona inside.

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.

Swashbuckling name worthy of a hero in a romance novel. Deveraux or Devereaux is drawn from the town of Evreux in France and combined with the prefix de- denoting it likely referred to a noble of that area.

One of the fierce new animal names new to name lists, helped by its strong x-ending.

Roux, a color name meaning russet or reddish brown, is a possible middle name for your little auburn-haired babe, though a post-Hunger Games child would more likely be called Rue. Roux is also a culinary term for a mixture of fat and flour used in French cooking to make sauces.

Castor's twin in the constellation Gemini. That final x makes this name modern and cool.

Phar-phetched.

Rockers Ashlee Simpson and Pete Wentz put a new baby name on the map when they chose this downscale New York borough name for their son. The Bronx, the place, was named for early Dutch settler Jonas Bronck. Might Bronx become the next Brooklyn? We'd be surprised if it did.

An unusual name related to the willow family.

Dex, the nickname for Dexter that is sometimes used on its own, has lots of energy and dynamism. It was chosen by comedian Dana Carvey for his now grown son. With the growing popularity of Dexter, we may be seeing more of Dex.

Lady Aurex is a character in L. Frank Baum's Glinda of Oz, a sequel to The Wizard of Oz.

Rhythmic and sensual -- maybe too sensual, in terms of playground teasing. Sax Rohmer was the nom de plume of the prolific English novelist who created Dr.Fu Manchu.

An X-ending surname less common than the Jolie-Pitt-inspired Maddox. Grandparents might still associate it with the old TV crime show. 

Once a birth order name, now might work as a cool x-ending nickname. But be warned that it sounds very close to an unfortunate slang term.

Lex is still used mostly for boys, but like Alex, may cross over with the rising popularity of all long forms of the name. Lexi is another, more feminine option.