Name Spellings, Initials and Sounds
Cool Names with a Strong O
Across 8 pages
of 8
Nicolo
Italian form of Nicholas
"people of victory"
Nicolo is a more lively variation of Nicholas and one of the most attractive Italian names for boys . A name with a long, distinguished Italian history of its own, it also boasts the charming…
Nilo
Spanish diminutive of Daniel
"God is my judge"
So much more worldly than Danny.
O'brian
Irish
"descendant of Brian"
Irish surname that refers to High King Brian Boru, also spelled O'Brien. Makes a fabulous first name.
O'callahan
Irish
"son of the church lover"
One of the most usable of the fashionable O'Names.
O'casey
Irish surname
To modernize and add some oomph to the dated CASEY, add an O'-and also honor the great Irish playwright Sean.
O'connor
Irish
"son of the hound lover"
Perfect name for the child of dog enthusiasts, and much more distinctive than the trendy Connor.
O'donnell
irish
"son of the brave one"
Forget Donald. Honor Grandpa Don with this new spin.
O'donovan
Irish, 'son of the dark one"
Donovan is on the rise, so why not this sequel?
O'fallon
Irish
"son of the leader"
Fallon has gone feminine, but this puts it back in the boys' camp.
O'grady
Irish
"son of the noble one"
Like the other O' names, this is a wonderful way to pass down a family name.
O'hara
Irish
"son of Eaghra"
The O'Haras are descended from Eaghra -- pronounced and phonetically spelled Ara -- the lord of Luighne, the modern Leyney in County Sligo. As a name, this makes a satisfying new twist on Harry, and…
O'keefe
Irish
"son of the kind one"
Most parents interested in this name would be honoring either an ancestor or painter Georgia O'Keeffe.
O'neal
Irish
"from the chief's line"
Perfect as an updated namesake for Great-Uncle Neal (or Neil).
O'reilly
Irish
"son of the courageous one"
Reilly and Riley are hugely popular, but O'Reilly is still an up-and-comer.
O'shea
Irish
"hawklike, stately"
One of the jauntiest o' the O' names, the birth name of actor/ rapper Ice Cube.
O'sullivan
Irish
"son of the black-eyed one"
Sullivan has made itself into a first name and O'Sullivan may well follow suit.
Oak
English tree name
"tree from the genus Quercus"
Oak, a symbol of solidity, strength, and longevity, is joining Cedar and Pine as a viable name, one that would work especially well in the middle. If you'd prefer to take the longer route to the…
Obadiah
Hebrew
"servant of God"
For the seriously audacious biblical baby namer who wants to move beyond Elijah and Josiah, this name has considerable old-fangled charm. Obadiah, who gave his name to one of the shortest books in…