Brantly is a distinctive boys' name in United States, ranking #3695 in 2016 with 29 recorded births. The name reached its all-time peak in 2013 with 103 births ranking #1540. Since 1996, the popularity has increased by 163.6%. In 2016, approximately 1 in every 65,421 boys born was named Brantly. FALLING Recent data shows the name is currently falling.