Caitlin is a popular girls' name in England & Wales, ranking #97 in 2012 with 589 recorded births. The name reached its all-time peak in 2003 with 2,277 births ranking #22. Since 1996, the popularity has decreased by 35.0%. In 2012, approximately 1 in every 547 girls born was named Caitlin. FALLING Recent data shows the name is currently falling.