Rena is a distinctive girls' name in United States, ranking #1823 in 2006 with 113 recorded births. The name reached its all-time peak in 1996 with 135 births ranking #1286. Since 1996, the popularity has decreased by 16.3%. In 2006, approximately 1 in every 16,824 girls born was named Rena. FALLING Recent data shows the name is currently falling.