Rena is a distinctive girls' name in United States, ranking #1815 in 2005 with 108 recorded births. The name reached its all-time peak in 1996 with 135 births ranking #1286. Since 1996, the popularity has decreased by 20.0%. In 2005, approximately 1 in every 17,108 girls born was named Rena. FALLING Recent data shows the name is currently falling.