Caitlin is a popular girls' name in United States, ranking #76 in 2000 with 4,102 recorded births. This places Caitlin in the top 1% of ranked US girls' names for the year. Its actual usage is classified as Popular. The name reached its all-time peak in 1996 with 4,268 births ranking #84. In 2000, approximately 1 in every 443 girls born was named Caitlin. STABLE Recent data shows the name is currently stable.