An is a distinctive boys' name in United States, ranking #4136 in 2004 with 21 recorded births. The name reached its all-time peak in 1997 with 32 births ranking #2502. Since 1996, the popularity has decreased by 12.5%. In 2004, approximately 1 in every 94,514 boys born was named An. RISING Recent data shows the name is currently rising.