Cathlyn is a distinctive girls' name in United States, ranking #13838 in 2001 with 6 recorded births. The name reached its all-time peak in 2024 with 12 births ranking #8525. Since 1996, the popularity has increased by 20.0%. In 2001, approximately 1 in every 300,093 girls born was named Cathlyn. RISING Recent data shows the name is currently rising.