An is a distinctive girls' name in United States, ranking #4948 in 2009 with 29 recorded births. The name reached its all-time peak in 2010 with 47 births ranking #3415. Since 1996, the popularity has increased by 31.8%. In 2009, approximately 1 in every 63,340 girls born was named An. STABLE Recent data shows the name is currently stable.