Erin is a distinctive girls' name in United States, ranking #833 in 2025 with 327 recorded births. The name reached its all-time peak in 1996 with 6,256 births ranking #51. Since 1996, the popularity has decreased by 94.8%. In 2025, approximately 1 in every 4,915 girls born was named Erin. FALLING Recent data shows the name is currently falling.