Karolyn is a distinctive girls' name in United States, ranking #4032 in 2018 with 36 recorded births. This places Karolyn in the top 22% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1997 with 52 births ranking #2493. In 2018, approximately 1 in every 47,234 girls born was named Karolyn. RISING Recent data shows the name is currently rising.