Brentley is a distinctive girls' name in United States, ranking #9489 in 2009 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 2009, approximately 1 in every 153,073 girls born was named Brentley. FALLING Recent data shows the name is currently falling.