O'Brien

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O'Brien

/əˈbɹaɪən/ UK
/oʊˈbɹaɪən/ US

Rhymes with -aɪən

Where it comes from

Anglicisation of the Irish surname Ó Briain, meaning “descendant of Brian”.

proper noun O'Briens

countable, uncountable A surname from Irish. Landlady: O'Brien? He don't live here any more. Not lived here for months. I made him sling his hook. Never paid his lodgings.
countable, uncountable An unincorporated community in Shasta County, California.
countable, uncountable An unincorporated community in Suwannee County, Florida.
countable, uncountable A census-designated place in Josephine County, Oregon.
countable, uncountable A minor city in Haskell County, Texas.
countable, uncountable An unincorporated community in Barbour County, West Virginia.
countable, uncountable A town in Buenos Aires province, Argentina, also known as Eduardo O'Brien.

Thesaurus

Closest in meaning: obrien, abram, achilles, addict, addicts, akbar, al, alger, anon, apostle, applicant, bridegroom, brie, ld, maniacs, mclaughlin

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MLA

"O'Brien." Wiktionary, via Micwyn, micwyn.com/word/o'brien. Accessed 6 Nov. 2026.

APA

O'Brien. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/o'brien

Chicago

"O'Brien." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/o'brien.

BibTeX

@misc{o_brien_2026,
  title = {O'Brien},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/o'brien},
  urldate = {2026-11-06}
}