Brennan - Name Meaning and Origin

The boy's and girl's name Brennan \b-rennan, br(en)-nan\ is of Irish and Gaelic origin, and its meaning is "descendant of Braonán". Transferred use of the surname. Braonán is a personal name meaning "moisture, drop" or may also be a contracted form of Brendan.

For more information, see also the related name Brenna.

Baby names that sound like Brennan are Brynnan, Branwen, Briannon, Bronwyn, Bronwin and Bronwen. Other similar baby names are Brennah, Breanna, Breonna, Breona, Breina, Breean, Breann, Breana, Breehan, Breena, Brenda, Brenndah, Brennda, Brenn, Brendah, Brynna, Brinna, Brenne and Brienna.

Brennan is a very rare female first name and a very popular surname (source: 1990 U.S. Census). Displayed below is the baby name popularity trend for the girl's name Brennan. Click here to compare Brennan with related baby names.