Brennan

B3R1E1N1N1A1N1

proper noun

A surname from Irish.

Less commonScrabble 9

Meanings

proper nounBrennan (plural Brennans)

plural Brennans · alternative Branon

  1. A surname from Irish.
    1 more example

    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” exchange with television reporter Stan Bohrman.

    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.

Origin

  1. IrishÓ Branáin“descendant of Branán”
  2. IrishÓ Braonáin“descendant of Braonán”
  3. EnglishBrennan

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”).

Full word history & related roots →

Rhymes & wordplay

Anagrams

Cite this entry
APA

Brennan. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/Brennan

MLA

“Brennan.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Brennan. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “Brennan,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/Brennan.

Source: Brennan on Wiktionary, CC BY-SA 4.0.