130 Unisex Names That Start With O (With Meanings and Popularity)

130 Unisex Names That Start With O (With Meanings and Popularity)

Unisex names that start with O are flying high in the style stakes right now, with other O-starting choices like Oliver and Olivia, Owen and Odin at an all-time high.

Two up-and-coming unisex O names, Oakley and Ocean, rank among the most popular unisex names to achieve an almost-equal gender split, making either one an awesome androgynous choice.

Here, our full selection of unisex names that start with O, ordered by their current popularity on Nameberry. Each name is used more often for the gender indicated by its heart.

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Unisex Names

Baby Names A-Z

  1. Owen
    • Origin:

      Welsh
    • Meaning:

      "young warrior; well-born"
  2. Orion
    • Origin:

      Greek
    • Meaning:

      "boundary, limit"
  3. Oakley
    • Origin:

      English
    • Meaning:

      "oak wood or clearing"
  4. Oleander
    • Origin:

      Botanical name
  5. Ozzy
    • Origin:

      Pet form of Oswald, Osborn, Osmond or Oscar, English
    • Meaning:

      "divine; deer"
  6. Oberon
    • Origin:

      Variation of Auberon
    • Meaning:

      "elf king; noble bear"
  7. Onyx
    • Origin:

      Word name
    • Meaning:

      "gem stone; claw, nail"
  8. Ocean
    • Origin:

      English, nature name
    • Meaning:

      "ocean"
  9. Odysseus
    • Origin:

      Greek mythology name
    • Meaning:

      "wrathful"
  10. Oakley
    • Origin:

      English
    • Meaning:

      "oak wood or clearing"
  11. Ollie
    • Origin:

      Diminutive of Oliver, Latin
    • Meaning:

      "olive tree"
  12. Orion
    • Origin:

      Greek mythology name
  13. Oak
    • Origin:

      English tree name
    • Meaning:

      "tree from the genus Quercus"
  14. Onyx
    • Origin:

      Word name
    • Meaning:

      "gem stone; claw, nail"
  15. Ozzie
    • Origin:

      Diminutive of Osmond, Oswald, or Oscar
    • Meaning:

      "divine; deer"
  16. Ori
    • Origin:

      Hebrew
    • Meaning:

      "my light"
  17. Oakland
    • Origin:

      American nature name or place name
    • Meaning:

      "oak land"
  18. October
    • Origin:

      English word name
    • Meaning:

      "month name"
  19. Ottie
    • Osian
      • Origin:

        Welsh variation of Oisin, Irish
      • Meaning:

        "little deer"