Kiefer is a distinctive boys' name in United States, ranking #11600 in 2023 with 6 recorded births. This places Kiefer in the bottom 18% 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 91.2%. In 2023, approximately 1 in every 284,759 boys born was named Kiefer. STABLE Recent data shows the name is currently stable.