An is a distinctive boys' name in United States, ranking #4349 in 1999 with 16 recorded births. This places An in the top 37% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1997 with 32 births ranking #2502. Since 1996, the popularity has decreased by 33.3%. In 1999, approximately 1 in every 120,005 boys born was named An. RISING Recent data shows the name is currently rising.