Caitlan is a distinctive girls' name in England & Wales, ranking #689 in 1997 with 35 recorded births. The name reached its all-time peak in 1999 with 92 births ranking #349. Since 1996, the popularity has increased by 84.2%. In 1997, approximately 1 in every 8,377 girls born was named Caitlan. FALLING Recent data shows the name is currently falling.