Brennon is a distinctive boys' name in United States, ranking #2295 in 2017 with 57 recorded births. The name reached its all-time peak in 2009 with 189 births ranking #1028. Since 1996, the popularity has decreased by 59.6%. In 2017, approximately 1 in every 32,462 boys born was named Brennon. FALLING Recent data shows the name is currently falling.