Brenan is a distinctive boys' name in United States, ranking #7623 in 2014 with 10 recorded births. The name reached its all-time peak in 2009 with 42 births ranking #2850. Since 1996, the popularity has decreased by 72.2%. In 2014, approximately 1 in every 192,044 boys born was named Brenan. FALLING Recent data shows the name is currently falling.