Merlin is a distinctive girls' name in United States, ranking #4382 in 2003 with 30 recorded births. The name reached its all-time peak in 2003 with 30 births ranking #4382. Since 1996, the popularity has increased by 130.8%. In 2003, approximately 1 in every 60,902 girls born was named Merlin. STABLE Recent data shows the name is currently stable.