Brantly is a distinctive boys' name in United States, ranking #3689 in 2017 with 29 recorded births. This places Brantly in the top 26% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2013 with 103 births ranking #1540. Since 1996, the popularity has increased by 163.6%. In 2017, approximately 1 in every 63,804 boys born was named Brantly. FALLING Recent data shows the name is currently falling.