Kiefer is a distinctive boys' name in United States, ranking #4702 in 2016 with 21 recorded births. This places Kiefer in the top 33% 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 69.1%. In 2016, approximately 1 in every 90,343 boys born was named Kiefer. STABLE Recent data shows the name is currently stable.