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

235 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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Girl Names

Boy Names That Start With O

  1. Olivia
    • Origin:

      Latin
    • Meaning:

      "olive tree"
  2. Ophelia
    • Origin:

      Greek
    • Meaning:

      "help"
  3. Ottilie
    • Origin:

      German, French
    • Meaning:

      "prosperous in battle"
  4. Odette
    • Origin:

      French, from German
    • Meaning:

      "wealthy"
  5. Olive
    • Origin:

      English, from Latin, nature name
    • Meaning:

      "olive tree"
  6. Oona
    • Origin:

      Irish, variation of Una
    • Meaning:

      "lamb"
  7. Octavia
    • Origin:

      Latin
    • Meaning:

      "eighth"
  8. Orla
    • Origin:

      Irish
    • Meaning:

      "golden princess"
  9. Odessa
    • Origin:

      Ukrainian place-name
  10. Opal
    • Origin:

      Sanskrit
    • Meaning:

      "gem"
  11. Oriana
    • Origin:

      Latin
    • Meaning:

      "dawn"
  12. Olympia
    • Origin:

      Greek
    • Meaning:

      "from Mount Olympus"
  13. Oonagh
    • Origin:

      Variation of Una, Irish
    • Meaning:

      "lamb"
  14. Ondine
    • Origin:

      Latin
    • Meaning:

      "little wave"
  15. Oakley
    • Origin:

      English
    • Meaning:

      "oak wood or clearing"
  16. Olga
    • Origin:

      Slavic variation of Helga, Norse
    • Meaning:

      "holy"
  17. Onyx
    • Origin:

      Word name
    • Meaning:

      "gem stone; claw, nail"
  18. Ottoline
    • Origin:

      French and English, diminutive of Ottolie
    • Meaning:

      "prospers in battle"
  19. October
    • Origin:

      English word name
    • Meaning:

      "month name"
  20. Odelia
    • Origin:

      Hebrew, German
    • Meaning:

      "I will praise the Lord or wealth"