Brentley is a distinctive girls' name in United States, ranking #9389 in 2006 with 12 recorded births. The name reached its all-time peak in 2012 with 23 births ranking #5740. Since 1996, the popularity has increased by 140.0%. In 2006, approximately 1 in every 158,423 girls born was named Brentley. FALLING Recent data shows the name is currently falling.