Brenin is a distinctive boys' name in United States, ranking #8393 in 2005 with 8 recorded births. The name reached its all-time peak in 2011 with 14 births ranking #5985. Since 1996, the popularity has increased by 33.3%. In 2005, approximately 1 in every 249,643 boys born was named Brenin. FALLING Recent data shows the name is currently falling.