Brennah is a distinctive girls' name in United States, ranking #9043 in 2015 with 12 recorded births. The name reached its all-time peak in 2001 with 41 births ranking #3320. Since 1996, the popularity has decreased by 33.3%. In 2015, approximately 1 in every 148,721 girls born was named Brennah. FALLING Recent data shows the name is currently falling.