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Girl Names Starting With O

Girl names that begin with O are highly fashionable right now, with attractive O-starting options like Olive, Opal and Ophelia all rising rapidly up the popularity rankings, while still retaining their quirky charm.

O names for girls are particularly popular across the pond in Britain: along with current #1 girl name Olivia, other popular O-starting picks in the Top 1000 for England and Wales include sweet Scottish Orla, sassy Ottilie, and sophisticated Octavia.

In the US, O names remain relatively rare, with only Olive, Ophelia, Oakley and Oaklyn joining Olivia in the Top 500 girl names in recent years.

Along with Orla and Ottilie, other original O baby names for girls include chic French options Odette and Oceane, fresh nature names Onyx and Ochre, and geographical picks Odessa and Olympia.

Here, our full collection of girl names beginning with O. The top names below rank among the current US Top 1000 Baby Names and are ordered by popularity. Unique names rank below the Top 1000 and are listed alphabetically.

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See Unique Girl Names Starting with O

Top Girl Names Starting with O

  • Olivia

    Olivia is one of the top US baby names as well as a popular girls' name in English-speaking and European countries around the world. ... Read More 

  • Olive

    Though greatly overshadowed by the trendy Olivia, Olive has a quiet, subtle appeal of its own -- and is now enjoying a remarkable comeback. Olive is one of only four Read More 

  • Ophelia

    Ophelia is a beautiful name that has long been hampered by the stigma of Hamlet's tragic heroine—for whom he seems to have invented the name—but more and more parents are beginning to put... Read More 

  • Oakley

    The Annie Oakley connection makes this a bit more girl-appropriate. Oakley has the dubious honor of belonging to the 'brand' names baby club- after the Oakley sunglasses. This name made it into... Read More 

  • Octavia

    Octavia began as the Latin, then Victorian name for an eighth child. While there aren't many eighth children anymore, this ancient Roman name has real possibilities as a substitute for the... Read More 

  • Oaklyn

    Oaklyn is one of the oak-related names moving up the popularity charts, along with sister Oakley. The suffix lyn means lake in Welsh so you can think of this as meaning oak lake. The spelling... Read More 

  • Oaklynn

    Many names relating to oak as in the tree are becoming more popular for baby girls, including Oaklynn, which may mean "oak lake" or may just be the tree name with the popular lynn suffix appended.... Read More 

  • Opal

    Opal is on the verge of a repolishing, following other jewel names like Ruby and Pearl. A Top 100 name during the first two decades of the twentieth century, the opalescent Opal has a good chance... Read More 

  • Oaklee

    Oakley is one of the truest unisex names for babies, achieving a 56-44 gender distribution, favoring girls. Oaklee is 80% female and may serve as a clearer identification of sex, if that’s what... Read More