Kiefer is a distinctive boys' name in United States, ranking #3481 in 2011 with 31 recorded births. This places Kiefer in the top 24% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2006 with 84 births ranking #1693. Since 1996, the popularity has decreased by 54.4%. In 2011, approximately 1 in every 61,258 boys born was named Kiefer. STABLE Recent data shows the name is currently stable.