Brennen is a distinctive boys' name in United States, ranking #3110 in 2022 with 39 recorded births. The name reached its all-time peak in 2009 with 455 births ranking #580. Since 1996, the popularity has decreased by 84.6%. In 2022, approximately 1 in every 44,728 boys born was named Brennen. FALLING Recent data shows the name is currently falling.