1770+ Boy Names Ending in O

See THOMAS.

Energetic but mellow.

Heard in both Italy and Spain, Tulio could make a more unusual alternative to Julio. Or with the rediscovery of many Roman names, you might want to go to the original Tullius, the middle name of the philosopher and statesman Cicero.

Italian surname most Americans will associate with actress Edie Falco, of Sopranos fame.

An exceedingly friendly every-guy nickname that could rise alongside the likes of Ike, Sid, and Ned.

Ido is a multicultural name seldom heard in modern America but popular in the Middle East. As transliterations, Ido and its other form Iddo are equally correct.

This name of the patron saint of Naples would make an apt choice for a New Year's baby, or one with Neapolitan roots.

Mauro, a Top 100 name in Spain and Puerto Rico, is etymologically unrelated to the girls' name Maura, but that won't stop many English speakers from drawing the comparison.

Tarvo has two potential origin stories. The first is that it derives from the Old Finnish word tarvas, meaning "wild aurochs," a wild species of cattle that is now extinct. The second possible derivation is from the Estonian tarv, meaning "energy."

Simple and sweet name for a son that feels on-trend in this era of Kai.

Patrick Lafcadio Hearn was born on the Greek Island of Lefkada, the origin of the name he used as a first. But as a writer, he was known as Koizumi Yakumo, a collector of Japanese folk tales and ghost stories. Truly an international choice.

Macario is used in the modern US, the Spanish form of the ancient Greek Makarios or Latinized Macarius, the name of several early saints. Accessible and worldly, Macario can lead to the friendly nickname Mac.

Japanese city name not yet on the map for babies, but why not?

Thảo is a unisex, though primarily feminine, name in Vietnam.