Ainslie is a distinctive girls' name in United States, ranking #8553 in 2000 with 11 recorded births. This places Ainslie in the top 48% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2009 with 40 births ranking #3871. Since 1996, the popularity has increased by 83.3%. In 2000, approximately 1 in every 165,088 girls born was named Ainslie. FALLING Recent data shows the name is currently falling.