Merlin is a distinctive girls' name in United States, ranking #10238 in 2019 with 10 recorded births. The name reached its all-time peak in 2003 with 30 births ranking #4382. Since 1996, the popularity has decreased by 23.1%. In 2019, approximately 1 in every 167,757 girls born was named Merlin. STABLE Recent data shows the name is currently stable.