Caelyn is a distinctive girls' name in United States, ranking #3727 in 1999 with 32 recorded births. The name reached its all-time peak in 2012 with 193 births ranking #1251. Since 1996, the popularity has increased by 146.2%. In 1999, approximately 1 in every 55,431 girls born was named Caelyn. FALLING Recent data shows the name is currently falling.