Millenia is a distinctive girls' name in United States, ranking #4825 in 1999 with 23 recorded births. The name reached its all-time peak in 2000 with 41 births ranking #3320. Since 1996, the popularity has increased by 360.0%. In 1999, approximately 1 in every 77,121 girls born was named Millenia. FALLING Recent data shows the name is currently falling.