Karolyn is a distinctive girls' name in United States, ranking #3278 in 2001 with 42 recorded births. The name reached its all-time peak in 1997 with 52 births ranking #2493. Since 1996, the popularity has increased by 13.5%. In 2001, approximately 1 in every 42,870 girls born was named Karolyn. RISING Recent data shows the name is currently rising.