Erinn is a distinctive girls' name in United States, ranking #7743 in 2015 with 15 recorded births. The name reached its all-time peak in 1997 with 77 births ranking #1905. Since 1996, the popularity has decreased by 73.7%. In 2015, approximately 1 in every 118,977 girls born was named Erinn. FALLING Recent data shows the name is currently falling.