Brentley is a distinctive girls' name in United States, ranking #14795 in 2005 with 6 recorded births. The name reached its all-time peak in 2012 with 23 births ranking #5740. Since 1996, the popularity has increased by 20.0%. In 2005, approximately 1 in every 307,950 girls born was named Brentley. FALLING Recent data shows the name is currently falling.