Brennon is a distinctive boys' name in United States, ranking #898 in 1998 with 161 recorded births. This places Brennon in the top 8% of ranked US boys' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2009 with 189 births ranking #1028. Since 1996, the popularity has increased by 14.2%. In 1998, approximately 1 in every 11,872 boys born was named Brennon. FALLING Recent data shows the name is currently falling.