Brentley is a distinctive girls' name in United States, ranking #8212 in 2013 with 14 recorded births. The name reached its all-time peak in 2012 with 23 births ranking #5740. Since 1996, the popularity has increased by 180.0%. In 2013, approximately 1 in every 125,315 girls born was named Brentley. FALLING Recent data shows the name is currently falling.