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- Brennan - Last Name Meaning & Origin
Brennan
- Used in: 3 countries
Origin: Irish
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”).
Etymology: Wiktionary (CC-BY-SA)
Name Variants & Related
Popularity by Country
Brennan
Rank #484
Frequency
0.04% of population
Popularity Over Time (Scotland)
Brennan
Rank #642
Frequency
48,296 people (17.9 per 100k)
Ethnic Distribution
White 95.97% Hispanic 1.5% Black 0.69% Asian/PI 0.59% Native Am. 0.3% Two+ 0.95%
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