Brennon is a distinctive boys' name in United States, ranking #2560 in 2016 with 49 recorded births. The name reached its all-time peak in 2009 with 189 births ranking #1028. Since 1996, the popularity has decreased by 65.2%. In 2016, approximately 1 in every 38,719 boys born was named Brennon. FALLING Recent data shows the name is currently falling.