Macho

Very popular in France and Belgium, this name -- pronounced mat-tees, like the surname of the painter Matisse -- might make an appealing new way to say Matthew here.

Milo is most commonly considered to be Germanic name derived from the Latin word miles, meaning "soldier." However, there is evidence to suggest it also may have independently spawned from the Slavic root milu, meaning "merciful." Milo predates brother name Miles, a variation that evolved when the name immigrated to the British Isles in the Middle Ages. Mylo is an alternate spelling.

This widely-used Romanian choice was the name of a medieval ruler who brought stability to the region of Wallachia.

Nacio is attractive and energetic -- one of the most appealing Spanish nickname names. Songwriter Nacio (born Ignacio) Herb Brown wrote many American standards, including Singin' in the Rain.

Always the top spelling of the name; Neil peaked in the 1950s, but then enjoyed a second coming following the fame of such Neils as astronaut Armstrong and singers Sedaka, Diamond, and Young. Now semiretired.

Nico is one of the great nickname names, full of charm, energy and effortless cool -- a neo Nick.

The friendly and sporty feeling Nolan blends some of the best qualities of other popular boy names. With the gentle but energetic sounds of Noah, a hint of the classic Nicholas, and the cool, surname-style vibe of Greyson or Colton, it makes for a familiar and grounded choice.

A male Hebrew name with two upbeat meanings — "to encourage or lift up" or "to restore".

Intriguing name that's a Top 100 choice in Spain and virtually unknown outside that country. But has definitely possibilities for the adventurous baby namer.

Otto is cool again. Long a quintessential Old Man Name, Otto has been promoted to trending darling of adventurous baby namers.

Piero is elegant, melodic, appealing. Just picture the muted frescoes of Renaissance artist Piero della Francesca.

Britney Spears put this old-fashioned surname name back on the map when she chose it as her son Sean's middle name, which the family uses as his first.

See RIO.

Richie was once a popular enough nickname for Richard that it made the Top 1000 all by itself. It's seriously out of style now -- though still a better choice than Dick or even Ricky.

This short form of Robert was borne by famous figures from Robbie Williams to Robbie Coltrane to Robbie Robertson. At one point, Robbie was the cool new Bobby, but now Robbie is cool only for girls.