1770+ Boy Names Ending in O

Charming way to freshen up Jacob.

Frank is cool again. Frankie is cute. But frankly, Frankito is a couple of diminutives too many.

The double-A is often a hard sell for baby names in an English-speaking context, and many will find Dario, as in public intellectual Dario Fo, appealing enough with just one. But diehard Game of Thrones fans may be attracted to this version, as it is the first name of charming rascal Daario Naharis, a mercenary first hired, then seduced, by Daenerys Targaryen during her conquest of Slaver's Bay.

A name with a lot of panache, with ties to the great Spanish Mannerist painter El Greco--though his real name was DOMENICOS.

More unusual than Dakota or Austin, Colorado conjures images of majestic mountains and windswept wilderness. Some will prefer the more preppy Aspen, but Colorado feels like the true explorer.