Karolyn is a distinctive girls' name in United States, ranking #4260 in 2003 with 31 recorded births. The name reached its all-time peak in 1997 with 52 births ranking #2493. Since 1996, the popularity has decreased by 16.2%. In 2003, approximately 1 in every 58,937 girls born was named Karolyn. RISING Recent data shows the name is currently rising.