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547 Girl Names That Start With O (with Meanings and Popularity)

Emma Waterhouse
By Emma Waterhouse
Updated Wed Dec 20 2023
547 Girl Names That Start With O (with Meanings and Popularity)

Girl names that start with O are trending 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 Oaklee 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 selection of girl names that start with O, ordered by their current popularity on Nameberry.

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Baby Names A-Z

Girl Names

Boy Names That Start With O

  1. Opha

    • Origin:

      Greek, Hebrew

    • Meaning:

      "help; fawn"
  2. Ophelia

    • Origin:

      Greek

    • Meaning:

      "help"
  3. Olivia

    • Origin:

      Latin

    • Meaning:

      "olive tree"
  4. Ottilie

    • Origin:

      German, French

    • Meaning:

      "prosperous in battle"
  5. Odette

    • Origin:

      French, from German

    • Meaning:

      "wealthy"
  6. Olive

    • Origin:

      English, from Latin, nature name

    • Meaning:

      "olive tree"
  7. Orla

    • Origin:

      Irish

    • Meaning:

      "golden princess"
  8. Octavia

    • Origin:

      Latin

    • Meaning:

      "eighth"
  9. Opal

    • Origin:

      Sanskrit

    • Meaning:

      "gem"
  10. Oona

    • Origin:

      Irish, variation of Una

    • Meaning:

      "lamb"
  11. Oriana

    • Origin:

      Latin

    • Meaning:

      "dawn; gold"
  12. Odelia

    • Origin:

      Hebrew, German

    • Meaning:

      "I will praise the Lord or wealth"
  13. Odessa

    • Origin:

      Russian form of Odesa, Ukrainian place-name

    • Meaning:

      "voyage"
  14. Olympia

    • Origin:

      Greek

    • Meaning:

      "from Mount Olympus"
  15. Olga

    • Origin:

      Slavic variation of Helga, Norse

    • Meaning:

      "holy"
  16. Osa
    • Ollie

      • Origin:

        Short form of Olive or Olivia, Latin

      • Meaning:

        "olive tree"
    • Opalite

      • Origin:

        English

      • Meaning:

        "gemstone; glass"
    • Odile

      • Origin:

        French variation of German Otthild

      • Meaning:

        "prospers in battle"
    • Onyx

      • Origin:

        Word name

      • Meaning:

        "gem stone; claw, nail"