Brentley is a distinctive boys' name in United States, ranking #751 in 2012 with 304 recorded births. The name reached its all-time peak in 2014 with 413 births ranking #637. Since 1996, the popularity has increased by 2,940.0%. In 2012, approximately 1 in every 6,239 boys born was named Brentley. FALLING Recent data shows the name is currently falling.