Millenium is a distinctive girls' name in United States, ranking #12697 in 2000 with 7 recorded births. This places Millenium in the bottom 28% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2000 with 7 births ranking #12697. In 2000, approximately 1 in every 259,425 girls born was named Millenium. STABLE Recent data shows the name is currently stable.