Milli is a distinctive girls' name in United States, ranking #4321 in 2025 with 33 recorded births. This places Milli in the top 25% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2022 with 39 births ranking #3868. In 2025, approximately 1 in every 48,705 girls born was named Milli. STABLE Recent data shows the name is currently stable.