Karolyn is a distinctive girls' name in United States, ranking #3437 in 2005 with 44 recorded births. The name reached its all-time peak in 1997 with 52 births ranking #2493. Since 1996, the popularity has increased by 18.9%. In 2005, approximately 1 in every 41,993 girls born was named Karolyn. RISING Recent data shows the name is currently rising.