Brentley is a distinctive boys' name in United States, ranking #2040 in 2010 with 67 recorded births. The name reached its all-time peak in 2014 with 413 births ranking #637. Since 1996, the popularity has increased by 570.0%. In 2010, approximately 1 in every 28,633 boys born was named Brentley. FALLING Recent data shows the name is currently falling.