Caitlin is a moderately popular girls' name in England & Wales, ranking #280 in 2017 with 176 recorded births. This places Caitlin in the top 4% of ranked UK girls' names for the year. Its actual usage is classified as Moderately Popular. The name reached its all-time peak in 2003 with 2,277 births ranking #22. Since 1996, the popularity has decreased by 80.6%. In 2017, approximately 1 in every 1,699 girls born was named Caitlin. FALLING Recent data shows the name is currently falling.