Brennon is a distinctive boys' name in United States, ranking #1419 in 2012 with 117 recorded births. The name reached its all-time peak in 2009 with 189 births ranking #1028. Since 1996, the popularity has decreased by 17.0%. In 2012, approximately 1 in every 16,210 boys born was named Brennon. FALLING Recent data shows the name is currently falling.