Brentley is a distinctive boys' name in United States, ranking #653 in 2013 with 372 recorded births. The name reached its all-time peak in 2014 with 413 births ranking #637. Since 1996, the popularity has increased by 3,620.0%. In 2013, approximately 1 in every 5,084 boys born was named Brentley. FALLING Recent data shows the name is currently falling.