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Girls Names Beginning With O

  1. Ostara

    • Origin:

      Old High German

    • Meaning:

      "dawn"

    • Description:

      In Germanic mythology, Ostara is the goddess of springtime, fertility, and dawn. Her existence as a mythological figure was pieced together by scholar Jacob Grimm, who used evidence such as the German word for April (ostermonat) and parallels to the Anglo-Saxon Eostre. Ostara is also the modern German name for the Easter holiday.
  2. Ondine

    • Origin:

      Latin

    • Meaning:

      "little wave"

    • Description:

      Mythological spirit of the waters; spelled Undine, she was an Edith Wharton heroine.
  3. Oaklee

    • Origin:

      Variation of Oakley, English

    • Meaning:

      "oak clearing"

    • Description:

      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 you’re interested in.
  4. October

    • Origin:

      English word name

    • Meaning:

      "month name"

    • Description:

      What is so rare as a month named June? October – and November and December – are a lot rarer. Brisk and substantial, they're so much more memorable and modern than April or May. October got its name via being the eighth month in the old Roman calendar. Some related, more feminine variations are Octavia and Ottavia.
  5. Orinthia

    • Origin:

      Latin

    • Meaning:

      "to excite, to stir the mind"

    • Description:

      A pretty, feminissima name, more distinctive than Cynthia. George Bernard Shaw used it for a character in his play The Apple Cart, about which it is said 'Orinthia is a name full of magic for me.'
  6. Ottilia

    • Origin:

      German and Swedish

    • Meaning:

      "prosperous"

    • Description:

      Form of Ottilie or Odilia
  7. Orlaith

    • Origin:

      Irish

    • Meaning:

      "golden princess"

    • Description:

      In early, pre-Norman Ireland, this name was borne by both a sister and a niece of high king Brian Boru. Now, the English form Orla is more commonly used.
  8. Ottoline

    • Origin:

      French and English, diminutive of Ottolie

    • Meaning:

      "prospers in battle"

    • Description:

      Curiously appealing, in a hoop-skirted, wasp-waisted way, Ottoline has recently entered the realm of modern possibility, especially since Sienna Miller chose it as the middle name of her daughter Marlowe.
  9. Ora

    • Origin:

      Latin

    • Meaning:

      "prayer"

    • Description:

      Short and slight, with great potential now that names like Ava, Ida and Orla are popular. Ora Beach is a tourist destination on Seram Island, Indonesia.
  10. Ottavia

    • Origin:

      Italian, variation of Latin Octavia

    • Meaning:

      "eight"

    • Description:

      Softer and more romantic than Octavia, this is a name once used when it wasn't uncommon for families to have eight children. A possible substitute for the epidemically popular Olivia.
  11. Olia

    • Description:

      Olia is a delicate feminine name with multiple possible origins. It may be a variation of Olga (meaning 'holy' from Old Norse), a diminutive of Olivia (derived from Latin 'olive tree'), or relate to the Greek name Olympia. In some Slavic regions, particularly Ukraine and Russia, Olia serves as a familiar form of Olga. The name's simplicity and melodic quality give it a gentle, feminine appeal with just three syllables flowing smoothly together. While uncommon in English-speaking countries, Olia has a cross-cultural versatility that works well internationally. Its brevity and vowel-rich composition make it distinctive yet accessible, offering a subtle alternative to more common names with similar sounds.

  12. Odyssey

    • Origin:

      Greek

    • Meaning:

      "story of Odysseus"

    • Description:

      Literally, the Odyssey is Homer's epic tale of Odysseus's voyage home from the Trojan wars, and it is also used figuratively for any long, challenging journey. It is used rarely but steadily for girls, and makes a recognizable and meaningful, yet uncommon, word name.
  13. Ophélie

    • Description:

      French variation of Ophelia that might make that lovely-and-haunted name feel more viable, yet there will be inevitable pronunciation issues.
  14. Orella

    • Origin:

      Latin

    • Meaning:

      "announcement from the gods, oracle"

    • Description:

      A pleasantly unfamiliar addition to the ella family of names.
  15. Orli

    • Origin:

      Hebrew

    • Meaning:

      "light"

    • Description:

      Cute, nickname-y, and international, à la Romy or Demi. Spelling it Orly turns it into a busy French airport.
  16. Oceana

    • Origin:

      Greek

    • Meaning:

      "ocean"

    • Description:

      If you're a lover of the beach and sea, and want a name that relates to the largest body of water, there are several variations you could consider.
  17. Oceane

    • Origin:

      French

    • Meaning:

      "ocean"

    • Description:

      Oceane (oh-see-EN) has been one of the chicest names in France for several years, ranking in the French Top 50. This is a sophisticated name that could easily cross the ocean, and is much more stylish than the English Ocean or Oceana.
  18. Osanna

    • Origin:

      Italian

    • Meaning:

      "praise the Lord; deliver us"

    • Description:

      An Italian form of expressive Hosanna, this spiritual name might appeal to those who enjoy nicknames Ozzy or Anna. Borne by a number of saints, including a 15th century Italian mystic, Osanna also appears as Ozana and Osanne in Romania and France respectively. The traditional Hosanna may work better however in English speaking countries if you want the religious expression to be obvious.
  19. Odilia

    • Origin:

      Germanic

    • Meaning:

      "fatherland; wealth, fortune"

    • Description:

      Though it has never charted in the United States, this frilly name has the elements some brave, modern namers might find attractive—namely, the initial O and the -ia suffix.
  20. Ocean

    • Origin:

      English, nature name

    • Description:

      Ocean is a nature name that comes right out and states its meaning and association. Full of power and depth, Ocean is one of the fastest-rising baby names for both girls and boys, making the US Top 1000 for both genders in 2021. Oceane, the version that's trendy in France, was used for only 11 baby girls in the US in the same year. Ocean-lovers who want to be less obvious can choose such subtler names that mean ocean as Jennifer or Marissa, but coming right out and using Ocean is a perfectly valid way to go.