Brentley is a distinctive boys' name in United States, ranking #747 in 2016 with 326 recorded births. The name reached its all-time peak in 2014 with 413 births ranking #637. Since 1996, the popularity has increased by 3,160.0%. In 2016, approximately 1 in every 5,820 boys born was named Brentley. FALLING Recent data shows the name is currently falling.