Rena is a distinctive girls' name in United States, ranking #2732 in 2015 with 65 recorded births. The name reached its all-time peak in 1996 with 135 births ranking #1286. Since 1996, the popularity has decreased by 51.9%. In 2015, approximately 1 in every 27,456 girls born was named Rena. FALLING Recent data shows the name is currently falling.