About Brennan
The surname Brennan is of Irish origin and is derived from the Gaelic name Ó Braonáin, meaning "descendant of Braonán." The name Braonán is believed to be derived from the word "braon," which means "moisture" or "drop." The surname Brennan is commonly found in Ireland and is associated with County Kilkenny.
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The surname Brennan features prominently in our database, being among the top 1000 surnames. Explore its detailed popularity metrics and distribution:
Below is the ethnic distribution of the surname Brennan based on recent US Census records. This is a brief glimpse into the diverse backgrounds of people carrying this surname.
Ranking information for the surname Brennan is not currently available.
Here's how to represent Brennan in Braille, each pattern of raised dots corresponds to a letter in the name.
The image below shows how you can spell Brennan using American Sign Language (ASL). In sign language, each hand shape corresponds to a specific a letter of the name.