Caitlin is a moderately popular girls' name in England & Wales, ranking #306 in 2018 with 155 recorded births. The name reached its all-time peak in 2003 with 2,277 births ranking #22. Since 1996, the popularity has decreased by 82.9%. In 2018, approximately 1 in every 1,860 girls born was named Caitlin. FALLING Recent data shows the name is currently falling.