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The brennan Surname

brennan Name Meaning and History

  1. (predominantly southern) Anglicized form of Gaelic Ó Braonáin ‘descendant of Braonán’, a personal name from a diminutive of braon ‘moisture’, ‘drop’. Compare Breen.
  2. (predominantly northern) Anglicized form of Gaelic Ó Branáin ‘descendant of Branán’, a personal name meaning ‘little raven’ (see Brannigan).

Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4
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brennan Family Facts

Distribution of brennan Families in the US in 1920
Number of brennan families
 911-1819
 304-910		 1-303
 0
Compiled by Ancestry.com.au from the 1920 US Federal Census records

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The information for this map came from Ancestry.com.au’s US Federal Census Collection.
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