Cailynn is a distinctive girls' name in United States, ranking #5181 in 2019 with 25 recorded births. The name reached its all-time peak in 2009 with 68 births ranking #2679. Since 1996, the popularity has increased by 66.7%. In 2019, approximately 1 in every 67,103 girls born was named Cailynn. FALLING Recent data shows the name is currently falling.