Brennen is a distinctive girls' name in United States, ranking #9388 in 2006 with 12 recorded births. The name reached its all-time peak in 2007 with 17 births ranking #7445. Since 1996, the popularity has increased by 140.0%. In 2006, approximately 1 in every 158,423 girls born was named Brennen. STABLE Recent data shows the name is currently stable.