Cailynn is a distinctive girls' name in United States, ranking #3145 in 2016 with 52 recorded births. The name reached its all-time peak in 2009 with 68 births ranking #2679. Since 1996, the popularity has increased by 246.7%. In 2016, approximately 1 in every 34,067 girls born was named Cailynn. FALLING Recent data shows the name is currently falling.