Meaning and Name Origin
Brennon \b-rennon, br(en)-non\ as a name for boys is of Irish, Gaelic and Celtic origin, and the name Brennon means "prince; teardrop". Brennon is a variant of Brendan (Irish, Gaelic, Celtic): from the old Irish personal name Bréanainn. Brennon is also a variation of Brennan (Irish, Gaelic): variant of Brendan.
Brennon is an uncommonly occurring first name for men but a somewhat prominent surname for both adults and children (#58283 out of 88799, Top 66%). (2000 U.S. Census)
Charted below is the baby name popularity of Brennon for boys. Brennon entered the list in 1995 and reached its highest rank of #871 in the U.S. in the year 1999, but is not in the Top 1000 currently. (2014 Birth Statistics)
Below is a charted comparison of the popularity of the boy name Brennon and related names. Prominent related forms of Brennon listed in the Top 1000 are Brendan (#351 in 2014), Brennan (#386), Brenden (#711), Brendon and Brennen. These boy names were at the height of their popularity in 1998 and have become much less widespread since, with the forms Brendon, Brennen and Brenden becoming less trendy. Brendan (#351) and Brennan (#386) are two of the more fashionable names for newborns in this list. (2014 Birth Statistics)