An energetic and friendly Italian classic, Carlo is popular in its native Italy, but also familiar across Spain, the Netherlands, Germany, the UK, France, and Brazil. A variation of the regal French and English classic Charles, it is ultimately derived from the Latin Carolus and the Germanic Karl, meaning "free man".

Old-school nickname ala Spike and Babe that's favored by some hipster parents.

Much less popular as a standalone choice. This nickname-name entered the US Top 1000 in 1928 and received wide use for many years, but has been waning in popularity recently.

Rosario comes from the Spanish title of the Virgin Mary, Nuestra Señora del Rosario, or "Our Lady of the Rosary", Rosary referring to the vocal and mental prayers in Catholicism, that reflect on the life of Christ and his Mother.

Short form of Donald -- or more stylishly, Donahue or Donovan -- that's acquired a new sixties-era suaveness thanks to Mad Man Don Draper. The name also carries a Sopranos or Godfather-style double entendre.

In France, pronounced PRO-spare, Prosper is a fairly common name; here it presents a worthy aspirational message for a child.

Eternally tied to the surname Chase, via the old English battle and ballad, the DC suburb, and the goofy SNL pratfaller (who was born Cornelius). It entered the US Top 1000 in 2014.

Old World Italian name that might become fashionable in a so-far-out-it's-in way, like Enzo and Rocco. Main recommendation: It's among the rare boy names that mean life.

Grandmas will remember the old TV detective show; playmates won't. This is a name that has many variations in different cultures, from Columbus to Columba to Colum to Colm.