Word.ws English Dictionary

O'Brian

O'Brian proper noun: a surname.

Proper noun

O'Brian

  1. A surname.

Questions about O'Brian

What does O'Brian mean?
O'Brian means a surname.
What part of speech is O'Brian?
O'Brian is a proper noun.

Words near O'Brian in the dictionary

  1. O'Berry
  2. O'Berrys
  3. O'Biden
  4. O'Bonsawin
  5. O'Boyle
  6. O'Brian
  7. O'Brien
  8. O'Brien County
  9. O'Brien potatoes
  10. O'Briens
  11. O'Bummer

Source and license

Adapted from Wiktionary: O'Brian (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “O'Brian.” Word.ws, https://word.ws/o%27brian. Based on Wiktionary, CC BY-SA 4.0.