Caitlan is a distinctive girls' name in England & Wales, ranking #569 in 2003 with 52 recorded births. The name reached its all-time peak in 1999 with 92 births ranking #349. Since 1996, the popularity has increased by 173.7%. In 2003, approximately 1 in every 5,359 girls born was named Caitlan. FALLING Recent data shows the name is currently falling.