Begins or Ends with O

Costello

Irish surname

"from England"

The fashion for using surnames as firsts has extended beyond the familiar Morgan and Parker to choices such as Cohen and O'Brien to -- why not? -- this quintessentially Irish name with the friendly o…

Cristiano

Italian and Portuguese variation of Christian

Variation of the popular religious name, boosted by megastar Portuguese footballer Cristiano Ronaldo.

Darko

Slavic

"gift"

If you're a movie fan or a sports fan, you might be attracted to this name, via the film "Donnie Darko" or the Serbian-born basketball star Darko Milicic. It is kind of dark, though.

Darro

Darro is an uncommon masculine name with multiple possible origins. It may derive from a variant of Darren (meaning 'great' in Gaelic), or potentially relate to geographic origins like the Darro…

Demetrio

Spanish form of Demetrius, Greek

"follower of Demeter"

Demetrio is an original way to a mythological name, and is further appealing as a boy's name inspired by a goddess, the earth mother Demeter.

Deveraux

French

"of Evreux; riverbank"

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…

Diallo

West African (Fula)

"bold"

Possibly meaning "bold", this West African surname is less commonly found as a first name, too.

Dino

Italian, diminutive of any name ending in -dino

Italian heritage name. It's sweet and simple, but has fallen almost out of use since its heyday in the 1960s.

Donaldo

Donaldo is a masculine name that represents the Spanish and Italian form of Donald. Its roots trace back to the ancient Celtic name Dòmhnall, meaning 'world ruler' or 'world mighty.' The name…

Draco

Greek from Latin

"dragon"

For as long as we all shall live, Harry Potter's sneering nemesis.

Dylano

Dylano is a masculine name that appears to be a creative variation of Dylan, which has Welsh origins meaning 'son of the sea' or 'born from the ocean.' This extended form adds a melodic ending that…

Edvino

Edvino is a masculine name of Italian origin, functioning as a variant of Edwin or Edvin. The name combines Germanic elements 'ead' meaning 'wealth' or 'fortune' and 'wine' meaning 'friend,' creating…

Elonzo

Elonzo is a rare masculine name that appears to be a creative variation combining elements of names like Alonzo and Elon. Alonzo derives from the Germanic name Alfonso, meaning 'noble and ready,'…

Fiero

Italian word name

"proud"

Fiery sound and uplifting meaning, but it's also among the Top 100 dog names. Spelled Fiyero, it's the hero of the book and musical "Wicked."

Fiorenzo

Italian variation of Florentius or Florence, Latin

"prospering, flourishing"

A masculine form of Florence, Fiorenzo has a bold, arty flair to it, while also giving the option of stylish nickname Enzo. It has been notably borne by cyclist Fiorenzo Magni.

Fortuno

Fortuno is a masculine name with Latin and Romance language origins, deriving from 'fortunatus,' meaning 'fortunate,' 'lucky,' or 'blessed.' This name shares etymological roots with the English word…

Frederico

Italian and Portuguese form of Frederick, German

"peaceful ruler"

Combining the elements 'frid' (peace) and 'ric' (ruler, power), Frederico carries a strong, noble connotation that has appealed to families across generations. The name has been borne by numerous…