Kiefer is a distinctive boys' name in United States, ranking #4034 in 2015 with 26 recorded births. The name reached its all-time peak in 2006 with 84 births ranking #1693. Since 1996, the popularity has decreased by 61.8%. In 2015, approximately 1 in every 73,702 boys born was named Kiefer. STABLE Recent data shows the name is currently stable.