Erin is a popular girls' name in England & Wales, ranking #59 in 2021 with 884 recorded births. The name reached its all-time peak in 2006 with 1,985 births ranking #28. Since 1996, the popularity has increased by 81.9%. In 2021, approximately 1 in every 310 girls born was named Erin. FALLING Recent data shows the name is currently falling.