Word.ws English Dictionary

Brennan

Brennan proper noun: a surname from Irish.

Proper noun

Brennan (plural Brennans)

  1. A surname from Irish.
    • Another friend was present while I was there, veteran criminal defense attorney William J. Brennan, jealously guarding an SUV full of memorabilia he’d purchased, including a Rizzo fedora and walking stick, the former of which he told me he hoped Rizzo was wearing during the famous “crumb bum”...2019 January 3, Michael Smerconish, “The Nixon letter I can’t forget”, in CNN, archived from the original on 23 Oct 2021
  2. A male given name transferred from the surname, of mostly American usage.
  3. A male given name, variant of Brendan.

Forms of Brennan

pluralBrennans
alternative formBranon

Origin of Brennan

From Irish Ó Braonáin (“descendant of Braonán”), a diminutive of braon (“moisture, drop”). Alternatively, from Irish Ó Branáin (“descendant of Branán”), a diminutive of bran (“raven”).

Questions about Brennan

What does Brennan mean?
Brennan means a surname from Irish.
What part of speech is Brennan?
Brennan is a proper noun.

Words near Brennan in the dictionary

  1. brength
  2. Brenham
  3. brenipatide
  4. brenkite
  5. Brenna
  6. Brennan
  7. Brennans
  8. Brennas
  9. Brennecke
  10. Brenneckes
  11. brenned

Source and license

Adapted from Wiktionary: Brennan (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.

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Cite this entry: “Brennan.” Word.ws, https://word.ws/brennan. Based on Wiktionary, CC BY-SA 4.0.