Caitlyn is a distinctive girls' name in United States, ranking #1185 in 2019 with 198 recorded births. The name reached its all-time peak in 1998 with 2,937 births ranking #115. Since 1996, the popularity has decreased by 91.5%. In 2019, approximately 1 in every 8,473 girls born was named Caitlyn. FALLING Recent data shows the name is currently falling.