Brentley is a distinctive boys' name in United States, ranking #906 in 2018 with 238 recorded births. The name reached its all-time peak in 2014 with 413 births ranking #637. Since 1996, the popularity has increased by 2,280.0%. In 2018, approximately 1 in every 7,628 boys born was named Brentley. FALLING Recent data shows the name is currently falling.