Rena is a distinctive girls' name in United States, ranking #1531 in 1998 with 110 recorded births. The name reached its all-time peak in 1996 with 135 births ranking #1286. Since 1996, the popularity has decreased by 18.5%. In 1998, approximately 1 in every 16,063 girls born was named Rena. FALLING Recent data shows the name is currently falling.