Brentley is a distinctive boys' name in United States, ranking #6685 in 1997 with 8 recorded births. The name reached its all-time peak in 2014 with 413 births ranking #637. Since 1996, the popularity has decreased by 20.0%. In 1997, approximately 1 in every 235,636 boys born was named Brentley. FALLING Recent data shows the name is currently falling.