Karolyn is a distinctive girls' name in United States, ranking #6718 in 2011 with 19 recorded births. The name reached its all-time peak in 1997 with 52 births ranking #2493. Since 1996, the popularity has decreased by 48.6%. In 2011, approximately 1 in every 92,569 girls born was named Karolyn. RISING Recent data shows the name is currently rising.