Cailynn is a distinctive girls' name in United States, ranking #3623 in 2018 with 42 recorded births. The name reached its all-time peak in 2009 with 68 births ranking #2679. Since 1996, the popularity has increased by 180.0%. In 2018, approximately 1 in every 40,486 girls born was named Cailynn. FALLING Recent data shows the name is currently falling.