The O Names

Baby names that begin or end with the letter o have long been particularly cool, especially (though there are a few feminine selections) for boys. The options, of course, range far beyond those offered here, especially considering the entire world of Latinate baby names out there, but this group should give you a pretty good start.
  • Calixto

    Gender: M Love Dislike

    Calixto is known in Spain as the name of three popes, one of whom was the martyr, Callixtus I, regarded as a saint. Calixto has a lot of energy and futuristic spirit, thanks in part to the... Read More 

  • Calypso

    Gender: F Love Dislike

    This hyper-rhythmic name has two evocative references. In Greek mythology, she was an island nymph, a daughter of Atlas, who delayed Odysseus from returning home. It is also a genre of West... Read More 

  • Cameo

    Gender: F Love Dislike

    This evocative term for a stone or shell carved in relief could make a striking first name for a girl, though she would have a starring role in her story, rather than a cameo. Read More 

  • Carlo

    Gender: M Love Dislike

    Energetic Italian classic that would blend with a surname of any ethnicity. Read More 

  • Cato

    Gender: M Love Dislike

    Cato conjures up images of ancient Roman statesmen and southern antebellum retainers; it could have revival potential, with its 'O' ending and the current interest in the names of Greek and Roman... Read More 

  • Cayo

    Gender: M Love Dislike

    Cayo is a rare and rhythmic Spanish name, all but unknown in the English-speaking world, that would make a lively choice. Read More 

  • Cicero

    Gender: M Love Dislike

    Roman statesman's name used here for slaves by owners trying to show off their classical education -- and rarely heard since. A bold baby namer could try to bring it into modern life. Read More 

  • Claudio

    Gender: M Love Dislike

    Claudio, a most appealing Italian name, is featured in not one, but two Shakespearean plays, Measure for Measure and Much Ado About Nothing..Read More 

  • Cleo

    Gender: F Love Dislike

    Cleo, one of the few girls' names to boast the cool-yet-lively o ending, is of course short for Cleopatra, the name of one of the most powerful women in history.

    Cleo was most popular... Read More 

  • Consuelo

    Gender: F Love Dislike

    Consuelo is a chic, highly sophisticated Spanish name that works well with Anglo surnames. It was regularly on the U.S. popularity list through 1983, reaching as high as Number 339 in 1930. ... Read More 

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