Karolyn is a distinctive girls' name in United States, ranking #2493 in 1997 with 52 recorded births. The name reached its all-time peak in 1997 with 52 births ranking #2493. Since 1996, the popularity has increased by 40.5%. In 1997, approximately 1 in every 33,474 girls born was named Karolyn. RISING Recent data shows the name is currently rising.