Rainn is a distinctive girls' name in United States, ranking #4020 in 2022 with 37 recorded births. This places Rainn in the top 23% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2023 with 38 births ranking #3961. In 2022, approximately 1 in every 44,291 girls born was named Rainn. FALLING Recent data shows the name is currently falling.