Brennen is a distinctive girls' name in United States, ranking #9378 in 1998 with 9 recorded births. The name reached its all-time peak in 2007 with 17 births ranking #7445. Since 1996, the popularity has increased by 80.0%. In 1998, approximately 1 in every 196,321 girls born was named Brennen. STABLE Recent data shows the name is currently stable.