Kiefer is a distinctive boys' name in United States, ranking #2532 in 2010 with 49 recorded births. The name reached its all-time peak in 2006 with 84 births ranking #1693. Since 1996, the popularity has decreased by 27.9%. In 2010, approximately 1 in every 39,151 boys born was named Kiefer. STABLE Recent data shows the name is currently stable.